Answer:
x = 5 and y = 35
OR
x = -4 and y = 8.
Step-by-step explanation:
Equate the right-hand side of the two equations:
x² + 2 x = y = 3 x + 20.
x² + 2 x - 3 x - 20 = 0.
x² - x - 20 = 0.
Quadratic discriminant
Δ = b² - 4 a · c
= (-1)² - 4 × 1 × (-20)
= 81.
There are two roots:
x₁ = (-b + [tex]\sqrt{\Delta}[/tex]) / (2 a)
= (- (-1) + [tex]\sqrt{81}[/tex]) / (2 × 1)
= (1 + 9) / 2
= 10 / 2
= 5
and
x₂ = (-b - [tex]\sqrt{\Delta}[/tex]) / (2 a)
= (1 - 9) / 2
= -4.
Find the value of y in both case.
y₁ = 3 × 5 + 20 = 35.
y₂ = 3 × (-4) + 20 = 8.
The solution to the system of equations is [tex]\( x = 5 \)[/tex] with [tex]\( y = 35 \)[/tex] and [tex]\( x = -4 \)[/tex] with [tex]\( y = 8 \)[/tex].
To solve these equations algebraically, we'll set them equal to each other since they both represent [tex]\( y \)[/tex].
Given equations:
[tex]\[ y = x^2 + 2x \][/tex]
[tex]\[ y = 3x + 20 \][/tex]
Setting them equal to each other:
[tex]\[ x^2 + 2x = 3x + 20 \][/tex]
Now, let's rearrange this equation to solve for \( x \):
[tex]\[ x^2 + 2x = 3x + 20 \[/tex]
[tex]x^2 + 2x - 3x - 20 = 0 \[/tex]
[tex]x^2 - x - 20 = 0[/tex]
This is a quadratic equation in the form [tex]\( ax^2 + bx + c = 0 \)[/tex]. We need to factorize or use the quadratic formula to solve for [tex]\( x \)[/tex]. Factoring might work here:
[tex]x^2 - x - 20 = 0[/tex]
[tex](x - 5)(x + 4) = 0[/tex]
Setting each factor equal to zero:
[tex]\[ x - 5 = 0 \] or \( x + 4 = 0 \)[/tex]
Solving for [tex]\( x \)[/tex] in each case:
[tex]\[ x = 5 \] or \( x = -4 \)[/tex]
Now that we have found the potential values of [tex]\( x \)[/tex], let's find the corresponding [tex]\( y \)[/tex] values using either of the original equations. Let's use [tex]\( y = x^2 + 2x \)[/tex]:
For [tex]\( x = 5 \)[/tex]:
[tex]y = 5^2 + 2(5)[/tex]
[tex]y = 25 + 10[/tex]
[tex]y = 35[/tex]
For [tex]\( x = -4 \)[/tex]:
[tex]y = (-4)^2 + 2(-4)[/tex]
[tex]y = 16 - 8[/tex]
[tex]y = 8[/tex]
Therefore, the solution to the system of equations is [tex]\( x = 5 \)[/tex] with [tex]\( y = 35 \)[/tex] and [tex]\( x = -4 \)[/tex] with [tex]\( y = 8 \)[/tex].
how to solve In 14 + In x = 0
Answer:
x = 1/14
Step-by-step explanation:
You can work it as is by subtacting ln(14), then taking antilogs:
ln(x) = -ln(14)
x = 14^-1
x = 1/14
___
Or you can rewrite to a single log and then take antilogs:
ln(14x) = 0
14x = 1
x = 1/14 . . . . . divide by the coeffient of x
What is the equation of the circle in standard form see attachment
Center (-1,1), radius 5 so
[tex](x - -1)^2 + (y - 1)^2 = 5^2[/tex]
[tex](x+1)^2 + (y-1)^2 = 25[/tex]
Third choice
Answer:
○ (x + 1)² + (y - 1)² = 25
Step-by-step explanation:
According to one of the Circle Equations, (X - H)² + (Y - K)² = R², all the negative symbols give the OPPOSITE terms of what they really are, so be EXTREMELY careful inserting the center into the formula with their CORRECT signs. Then in the end, square the radius.
The radius is five, so squaring this will give you twenty-five.
I am joyous to assist you anytime.
in an isosceles triangle ABC, AB=AC and the altitude from A to BC is 20. If the perimeter of the triangle is 80, find the area of the triangle.
Answer:
300 square units
Step-by-step explanation:
Let M be the midpoint of BC. Then AM =20 is the altitude. Let x represent the length BM=MC, and let y represent the length AB=AC. Then the perimeter is ...
2x +2y = 80
x +y = 40 . . . . divide by 2 . . . . . [eq A]
The Pythagorean theorem tells us ...
x^2 + 20^2 = y^2 . . . . . . . y is the hypotenuse of right triangle AMC
Rearranging, we have ...
y^2 -x^2 = 400
(y -x)(y +x) = 400
(y -x)·40 = 400
y -x = 10. . . . . . . . . [eq B]
Subtracting [eq B] from [eq A], we find ...
(x +y) -(y -x) = (40) -(10)
2x = 30
x = 15
The area of interest is 20x, so is ...
A = 20·x = 20·15 = 300 . . . . square units
5t ≤-15 is....????? i need help and if u guys could maybe explain it to me plz?
Answer:
t ≤ -3
Step-by-step explanation:
5t ≤ -15
You are solving for t. That means you want t alone on the left side. t is being multiplied by 5. To get rid of a multiplication by 5, you do the opposite operation, and you divide by 5. You must do the same operation to both sides of an inequality, so you must divide both sides by 5.
5t/5 ≤ -15/5
t ≤ -3
A doctor measured a patient’s resting pulse rate at 80 beats per minute. Draw a graph to show the relationship between time and the number of times the patient’s heart beats. Use it to estimate how many times the patient’s heart will beat in 18 minutes. Write an equation in Y = mx + b form.
Answer:
i also need the answer to this question
Step-by-step explanation:
Answer:
y= 8x +18
Step-by-step explanation:
solve the equation. a/6 - 11 = 25
Answer:
a=216.
Step-by-step explanation:
What you do is you need to get a by itself.
a/6-11=25. You first add 11 to both sides.
a/6=36. Next you will times 6 on both sides to get
a=216 as your answer.
help please ........
Example:
a) mutually exclusive
b) not mutually exclusive
c) not mutually exclusive
Your Turn:
a) not mutually exclusive
b) not mutually exclusive
c) not mutually exclusive
d) mutually exclusive
Step-by-step explanation:Events are mutually exclusive if they cannot both occur together. Otherwise, they are not mutually exclusive.
Example
a) the winner cannot be both a junior and a senior — mutually exclusive
b) the winner could be a female sophomore — not mutually exclusive
c) the winner could be a male freshman — not mutually exclusive
___
Your Turn
a) the card could be the ace of clubs — not mutually exclusive
b) the number could be divisible by both 5 and 10 — not mutually exclusive
c) the card could be the 5 of hearts — not mutually exclusive
d) the result cannot be both 6 and 7 — mutually exclusive
WILL MARK BRAINLIEST!!!NEED HELP ASAP!! Carrie will spin the arrow on the spinner four times. What is the probability that the arrow will stop on A, then B, then C, then D? 3/256 1/64 1/256 3/4
The probability that the arrow will land on any of them once is 1/4.
The probability that the arrow will land on any of them twice is 1/4 * 1/4. This is because the probability of Event A and Event B is P(B) * P(A).
Based on this:
[tex]P(a\cap b\cap c\cap d) = \frac{1}{4}\times \frac{1}{4}\times\frac{1}{4}\times\frac{1}{4}\\\\=\frac{1}{4\times4\times4\times 4}\\=\frac{1}{256}[/tex]
1/256
Hope this helps, let me know if I missed anything!
Answer:
1/256 or 2/512
Step-by-step explanation:
How is this one solved?
Answer:
see below
Step-by-step explanation:
This is solved by simplifying each expression and identifying the column heading it matches.
1. (6 x^2/(x^2 - 7 x + 10)) / (2 x)/(x - 5))
= (6 x^2/(x^2 - 7 x + 10)) · (x -5)/(2 x) . . . . invert and multiply
= (6x^2)/(2x) · (x -5)/((x -2)(x -5)) . . . . . . . factor so common factors can cancel
= 3x/(x -2) . . . . matches column 1
__
2. (x - 4) (x + 2)/(x^2 + 5 x + 6) + (-3 x^2 + 24 x - 20)/((x + 3) (4 x - 5))
= (x -4)(x +2)/((x +3)(x +2)) + (-3x^2 +24x -20)/((x +3)(4x -5)) . . . factor
= (x -4)/(x +3) + (-3x^2 +24x -20)/((x +3)(4x -5)) . . . . cancel common factor
= ((x -4)(4x -5) +(-3x^2 +24x -20))/((x +3)(4x -5)) . . . . use common denominator
= (4x^2 -21x +20 -3x^2 +24x -20)/((x +3)(4x -5)) . . . expand product
= (x^2 +3x)/((x +3)(4x -5)) . . . . . . collect terms
= (x)(x +3)/((x +3)(4x -5)) . . . . . . factor numerator
= x/(4x -5) . . . . . . . . . . . . . . . . . . cancel common factor ... matches column 2
__
3. 3 x^2/(x + 3) · (2 x + 6)/(2 x^2 - 4 x)
= 3·2·x·(x +3)/((x +3)(2·x)(x -2)) = 3/(x -2) . . . . matches column 1
__
4. 3 x/(4 x - 5) - 4 x^2/(8 x^2 - 10 x)
= 3x/(4x -5) - 4x^2/(2x(4x -5)) = (3x -2x)/(4x -5) = x/(4x -5) ... matches col 2
__
5. 5 x^2/(x - 2) · (2 x + 6)/(8 x^2 - 4 x) . . . . no match (has a denominator factor of 2x-1 that doesn't cancel any numerator factors)
__
6. -x/(4 x - 5) - 4 x^2/(16 x^2 - 22 x)
In order to match one of the columns, the term on the right must reduce to 2x/(4x-5), which it does not, or must have a denominator factor of x-2, which it also does not. no match.
The area of the circular base of a cylinder is 36 square units. The height of the cylinder is 2 units. What is the lateral area of the cylinder? Express the answer in terms of n.
Answer:
The lateral area of the cylinder is [tex]24 \pi\ units^{2}[/tex]
Step-by-step explanation:
we know that
The lateral area of the cylinder is equal to
[tex]LA=2\pi rh[/tex]
step 1
Find the radius of the base of the cylinder
The area of the base is equal to
[tex]A=\pi r^{2}[/tex]
we have
[tex]A=36 \pi\ units^{2}[/tex]
so
substitute and solve for r
[tex]36 \pi=\pi r^{2}[/tex]
Simplify
[tex]r=6\ units[/tex]
step 2
Find the lateral area
we have
[tex]r=6\ units[/tex]
[tex]h=2\ units[/tex]
substitute the values
[tex]LA=2\pi (6)(2)=24 \pi\ units^{2}[/tex]
object weighs 8,000 grams, how many kilograms does it weigh? A) 8 kilograms B) 80 kilograms C) 800 kilograms D) 80,000 kilograms
Answer:
A) 8 kilograms
Step-by-step explanation:
"kilo-" is a prefix meaning 1000. So, 8 kilo-grams = 8 thousand grams = 8,000 grams.
To convert 8,000 grams to kilograms, divide by 1,000, resulting in 8 kilograms. Therefore, an object that weighs 8,000 grams would indeed weigh 8 kilograms, which is option A.
If an object weighs 8,000 grams and you want to convert it to kilograms, you need to know the conversion between grams and kilograms. In the metric system, one kilogram is equal to 1,000 grams. So, to convert grams to kilograms, you divide the number of grams by 1,000.
To calculate the weight of the object in kilograms from grams:
Take the weight of the object in grams, which is 8,000 grams.Divide the weight in grams (8,000) by the number of grams in one kilogram (1,000).The calculation will be 8,000 \/ 1,000 = 8 kilograms.Therefore, an object that weighs 8,000 grams would weigh 8 kilograms, which corresponds to option A.
At the beginning of year 1, Mike invests $800 at an annual compound interest rate of 3%. He makes no deposits to or withdrawals from the account. Which example explicit formula can be used to find the account's balance at the beginning of year 7.
Answer:
C. A(7) = 800·(1 +0.03)^(7-1)
Step-by-step explanation:
Note that the times are described as "the beginning of year 1" and "the beginning of year 7." If you consider the formula to be the one marked (choice D), you find the general case is ...
A(n) = 800·1.03^n
When you put in 1 for n, you see it gives you ...
A(1) = 800·1.03^1 = 824 . . . . . . . incorrect value for "the beginning of year 1"
The exponent of 1.03 needs to be the difference in year numbers: 7-1, as in choice C.
The appropriate formula is ...
A(7) = 800·(1 +0.03)^(7-1)
How do I do this. I don’t understand how to move place values
For this case we must indicate the value of the following expression, expressed in scientific notation:
[tex](1.2 * 10^{-3}) * (1.1 * 10^{8}) =[/tex]
We have that for multiplication properties of powers of the same base, the same base is placed and the exponents are added:
[tex]a ^ n * a ^ m = a ^ {n + m}[/tex]
Then, rewriting the expression we have:
[tex](1.2 * 1.1) * 10 ^{- 3 + 8} =\\1.32 * 10 ^ 5[/tex]
Answer:
[tex]1.32 * 10 ^ 5[/tex]
Which expression is equivalent to (x2 − 8) − (−2x2 + 4)?
Answer: 6(x-2)
Step-by-step explanation:
(x·2-8)-(2x·2+4)
(2(x-4))+2x·2-4
2(x-4)+2x·2-4
2(x-4)+4x-4
2(x-4+2x-2)
2(3x-4-2)
2(3x-6)
2·3(x-2)
6(x-2)
Answer:
3x^2-12
Step-by-step explanation:
Just took it on USATestPrep, if that's where the question came from! ;)
Does anyone understand this
Answer:
C. not similar, dilations are involved
Step-by-step explanation:
For geometric figures, such as triangles, we generally study a couple of kinds of transformations.
One is the "rigid transformation" which lets us move, rotate, or reflect the figure any way we like, but we keep it the same size—as though it were cut from cardboard or anything else that holds its shape and size. Any figures transformed by a rigid transformation are congruent.
Another is very much like the "rigid transformation", but dilation is involved. That is, the figure is allowed to be stretched or shrunk uniformly (by the same factor in every direction). Figures transformed in this way are similar, but are not congruent.
In this diagram, your triangle has been reflected and changed in size by a different factor horizontally than vertically. Hence dilation is involved (answer choices A or C), but because the factors are different, the figures are not similar (answer choice C).
_____
Comment on the answer choices
Rotations may be involved in similarity transformations, too. For some reason, that possibility was left off of choices A and C. (On the other hand, rotation is equivalent to a suitable set of reflections.)
i jus want some point bro
Given: Circumscribed △ELT, EL=14, LT=17, ET=15.
Find: EI, LJ, and ST
Answer:
EI=6 units
LJ=8 units
ST=9 units
Step-by-step explanation:
step 1
we know that
The triangle ELT is a circumscribed triangle
so
EI=ES
LI=LJ
TS=TJ
EL=EI+LI ------> 14=EI+LI -----> 14=EI+LJ -----> equation A
LT=LJ+TJ----> 17=LJ+TJ ----> 17=LJ+TS ----> equation B
ET=ES+TS ---> 15=ES+TS----> 15=EI+TS ----> equation C
Subtract equation A from equation C
15=EI+TS
14=EI+LJ
--------------
15-14=TS-LJ
TS=1+LJ ------> equation D
substitute equation D in equation B and solve for LJ
17=LJ+(1+LJ)
17=2LJ+1
2LJ=17-1
LJ=8
Find the value of TS
TS=1+LJ -----> TS=1+8=9
Find the value of EI
14=EI+LJ ------> 14=EI+8 ----> EI=14-8=6
therefore
EI=6 units
LJ=8 units
ST=9 units
The ratio of the number of skiers who bought season passes to the number of snowboarders is 9:6. If a total of 225 people bought season passes, how many snowboarders bought season passes?
Answer:
90
Step-by-step explanation:
The total number of "ratio units" is 9+6 = 15, so each one must stand for 225/15 = 15 people. Then 6·15 = 90 people were snowboarders who bought season passes.
(There is a picture but I can't put it in the question)
Sides of the triangle: 2x, 4x-2, 3x-1
Find a single expression that represents the perimeter of the triangle.
A) x + 1
B) 5x − 3
C) 3x − 1
D) 9x − 3
The perimeter of a triangle is just adding all the sides.
So, (2x)+(4x-2)+(3x-1)= 9x-3
So, the answer is D, 9x-3
Answer:
D.
Step-by-step explanation:
The perimeter = the sum of the 3 sides.
Perimeter = 2x + 4x - 2+ 3x - 1
= 9x - 3.
please help I will give brainless.
15% answered swimming.
39 people said swimming, so 39 people is 15% of the total people surveyed.
To find the total number of people, divide 39 by 15%:
39 / 0.15 = 260
There were 260 total people surveyed.
Which is the equation of a line that passes through the points (1,4) and (-1,1)
Answer:
The equation of the line is y = 3/2x + 5/2
Step-by-step explanation:
To find the equation of this line, start by using the two points with the slope formula to find the slope.
m(slope) = (y2 - y1)/(x2 - x1)
m = (4 - 1)/(1 - -1)
m = 3/(1 + 1)
m = 3/2
Now that we have the slope, we can use that and either point in point-slope form to find the equation.
y - y1 = m(x - x1)
y - 4 = 3/2(x - 1)
y - 4 = 3/2x - 3/2
y = 3/2x + 5/2
Sets L, M, and N are shown. Which of the sets represents L ∪ (M ∩ N) (the union of L with the intersection of sets M and N)? L = {0, 20, 40, 80, 100} M = {5, 10, 15, 20, 25} N = {10, 20, 30, 40, 50} A) {0, 5, 10, 15, 20, 25, 30, 40, 50, 80, 100} B) {0, 10, 20, 40, 80, 100} C) {20, 40} D) {20}
Answer:
B) L ∪ (M ∩ N)={0,10,20,40,80,100}
Step-by-step explanation:
The given sets are;
L = {0, 20, 40, 80, 100}
M = {5, 10, 15, 20, 25}
and
N = {10, 20, 30, 40, 50}
(M ∩ N) are elements in set M and set N
(M ∩ N) ={10,20}
The elements in L ∪ (M ∩ N) are elements in L or M ∩ N or both
L ∪ (M ∩ N)={0,10,20,40,80,100}
The correct choice is B.
Answer:
B
Step-by-step explanation:
L ∪ (M ∩ N) means take "common" between M and N and take "sum of that and L".
Let's find (M ∩ N) (common between M and N):
We know
M = {5, 10, 15, 20, 25} , and
N = {10, 20, 30, 40, 50}
Thus, the common elements are 10 & 20, thus (M ∩ N) = {10,20}
Now we have:
L = {0, 20, 40, 80, 100}
(M ∩ N) = {10,20}
So sum of L and (M ∩ N) are all the unique elements of both the sets. They are 0, 10, 20, 40, 80, 100, or Option B
write as a product 27a^3−(a−b)^3
Answer:
(2a +b)·(13a^2 -5ab +b^2)
Step-by-step explanation:
The factorization of the difference of cubes is a standard form:
(p -q)^3 = (p -q)(p^2 +pq +q^2)
Here, you have ...
p = 3aq = (a-b)so the factorization is ...
(3a -(a -b))·((3a)^2 +(3a)(a -b) +(a -b)^2) . . . . substitute for p and q
= (2a +b)·(9a^2 +3a^2 -3ab +a^2 -2ab +b^2) . . . . simplify a bit
= (2a +b)·(13a^2 -5ab +b^2) . . . . . . collect terms
How do you simplify 2(3y - 4) without parenthesis
Answer:
6y -8
Step-by-step explanation:
Use the distributive property. It tells you the product can be simplified to the product of the outside factor and each of the individual terms in parentheses:
2(3y - 4) = 2·3y + 2·(-4) = 6y -8
The container that holds the water for the football team is 3/4
full. After pouring out 7 gallons of water, it is 1/2 full. How many gallons can the container hold?
Answer:
28 Gallons
Step-by-step explanation:
This one is really easy, so i want you to look at my steps:
1. Gather all given information, container is 3/4, 7 gallons are poured out to make it 1/2 full.
2. Find a common denominator for the fractions 1/2 and 3/4, this would be 4.
3. Make them both the same denominator, 2/4 and 3/4.
4. Subtract the remaining amount from the original amount to see how much 7 gallons made up, 3/4 - 2/4 = 1/4
5. Now that you know that 7 gallons made up 1/4 of the container, you can just multiply 7 by 4 to get the total amount of gallons that can fit in the container.
7 * 4 = 28 gallons is the max that the container can hold.
Answer:
28 gallons
Step-by-step explanation:
Got it right on test
in a circle with a radius of 12.6 ft and an arc is intercepted by a central angle of 2 pi over seven radians what is the arc length
❤️Hello!❤️ The answer is 11.31 feet arc length = radius * central angle (in radians)
arc length = 12.6 * 2*PI/7
arc length = 25.2 * PI/7
arc length = 11.31 feet ☯️Hope this helps!☯️ ↪️ Autumn ↩️
Answer:
11.31 ft is the arc length.
Step-by-step explanation:
We have given the radius r = 12.6 ft and arc intercept by central angle
Ф = 2π/7.
We have to find the arc length.
We know the formula to find the arc length that is:
L = rФ
Putting the values we get,
L= 12.6 × 2π/7
L = 25.2 π/7
L = 11.31 ft is the answer.
11.31 ft is the arc length.
1) Given: circle k(O), ED= diameter ,m∠OEF=32°, m(arc)EF=(2x+10)° Find: x
2)Given: circle k(O), m(arc) FE=56°, FD=ED Find: m∠EFO, m∠EFD
The value of x in Problem 1 is 11 degrees. The measures of angles EFO and EFD in Problem 2 are 28 degrees and 84 degrees respectively.
Explanation:In both problems, we're dealing with geometric principles related to circles and angles.
Problem 1: Given that OEF is a central angle standing on the arc EF, we know from circle geometry that the measure of the central angle is equal to the measure of the arc it intercepts. Therefore, 32° = 2x + 10°. Solving this equation, we get x = 11°.Problem 2: Since the angles are located at the circumference and standing on the same arc FE, the angle subtended by an arc at the center is double the angle subtended at the circumference. Therefore, m∠EFO= 56°/2 = 28°. Seeing as ∠EFD is an exterior angle of triangle EFO, its measure is equal to the sum of the two non-adjacent interior angles (angle sum property of a triangle). Therefore, m∠EFD = ∠EFO + ∠FEO = 28° + 56° = 84°.Learn more about Circle Geometry here:https://brainly.com/question/27802544
#SPJ12
1. The value of x is 11
2. angle EFO = 28°
3. angle EFD = 90°
In geometry, the central angle of a circle's arc is equal to the subtended arc's measure.
The relationship is given by
Central Angle = Arc Measure
Central Angle=Arc Measure in degrees. This property is fundamental in circular geometry.
1. Since arc EF = 2x + 10
2x + 10 = 32( angle at the centre equal measure of arc it intercept)
2x = 32 - 10
2x = 22
x = 11
Since FE = 56
EFO = 1/2 × 56 ( angle at the center is 2× angle at the circumference)
EFO = 28°
angle EFD = 90° ( angle substended from the diameter of a circle to the circumference is 90°)
What linear function represents the line given by the point slope equation y+7= 2/3(x+6)?
Answer:
the correct answer is the 3rd one
Answer:
the third option is correct
Step-by-step explanation:
find the zero of y=4x^2-12x-16
HELPP
Answer:
-1, 4
Step-by-step explanation:
factor out common term 4
4(x^2 - 3x - 4) find factors of -4 1 (-4)= -4 (c term) also 1 - 4 = -3 (b term)
4(x+1)(x-4) = 0
zeros are -1, 4
Answer:
[tex]\large\boxed{x=-1\ or\ x=4}[/tex]
Step-by-step explanation:
[tex]y=4x^2-12x-16\\\\\text{the zeros are for}\ y=0:\\\\4x^2-12x-16=0\qquad\text{divide both sides by 4}\\\\x^2-3x-4=0\\\\x^2+x-4x-4=0\\\\x(x+1)-4(x+1)=0\\\\(x+1)(x-4)=0\iff x+1=0\ \vee\ x-4=0\\\\x+1=0\qquad\text{subtract 1 from both sides}\\\boxed{x=-1}\\\\x-4=0\qquad\text{add 4 to both sides}\\\boxed{x=4}[/tex]
write the point intercept form and the slope-intercept form.
(-5,1) and (2,-5)
Use the information in the table to find the constant of proportionality and write the equation.
Thanks
Answer:
y = (5/2)x
Step-by-step explanation:
A proportional relation can be written as ...
y = kx
Solving for k, you divide by x to get ...
y/x = k
The contant of proportionality is the ratio of y to x. Any pair of x and y will do for computing k. The first pair requires no reduction in the fraction that results:
5/2 = k
So, your equation is ...
y = (5/2)x
Answer:
The constant of proportionality is
✔ 2.5
The equation that represents this proportional relationship is
✔ y = 2.5x
Step-by-step explanation:
hope this helps:)