Answers
Solve 5x - 20 = 3x for x as step 1.
Take it from here.
Related Questions
The price of a car is £15400 before it is reduced by 8%.
How much does it cost after the reduction
Answers
if we take 15400 to be the 100%, what is 8%?
[tex]\bf \begin{array}{ccll} amount&\%\\ \text{\textemdash\textemdash\textemdash}&\text{\textemdash\textemdash\textemdash}\\ 15400&100\\ x&8 \end{array}\implies \cfrac{15400}{x}=\cfrac{100}{8}\implies \cfrac{15400\cdot 8}{100}=x[/tex]
so, the reduced price of the car is 15400 - x.
The cost of the car after an 8% reduction on the initial price of £15,400 is £14,168. This is found by calculating 8% of the original price and subtracting that amount from the initial price.
The initial price of the car is £15,400. To calculate the price after an 8% reduction, we first find the value of the discount and then subtract it from the original price. An 8% reduction on £15,400 is calculated as follows:
Calculate 8% of £15,400: (8/100) * £15,400 = £1232.Subtract the discount from the original price: £15,400 - £1232 = £14,168.Therefore, as per the above explaination, the cost of the car after the reduction is £14,168.
Your friend has $80 when he goes to the fair. He spends $4 to enter the fair and $12 on food. Rides at the fair cost $1.25 per ride. Which function can be used to determine how much money he has left over after x rides? (1 point)
f(x) = 1.25x + 64
f(x) = −16x + $80
f(x) = −1.25x + 64
f(x) = −1.25x − 64
Answers
so ur function is :
f(x) = -1.25x + 64
A function is a relationship between inputs where each input is related to exactly one output.
The function that is used to determine how much money he has left over after x rides is
f(x) = -1.25x + 64.
What is a function?A function is a relationship between inputs where each input is related to exactly one output.
f(x) = 2x + 2 is a function.
f(x) = 3x + 6 is a function.
We have,
Total amount = $80
Cost of entering the fair = $4
Cost on food = $12
Cost per ride = $1.25
The money left after x rides.
= 80 - (1.25x + 12 + 4)
= 80 - 1.25x - 12 - 4
= 80 - 1.25x - 16
= 64 - 1.25x
= -1.25 + 64
The function to determine money left can be represented as:
f(x) = -1.25x + 64
Thus,
The function that is used to determine how much money he has left over after x rides is
f(x) = -1.25x + 64.
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There are 4 pears in all. How many pears in 1 group?
Answers
You did really give me much to work with.
If you are trying to split them up it would 2 groups that both contain 2 pears
So it think the answer to this question is 2 pears in 1 group
HELP ASAP PLEASE!
Evaluate the numerical expression.
− 1/3 − (− 4/9 )
Answers
So, let's separate the problem to its individual components.
We have -1/3
and we're subtracting (-)
- 4/9
Now, we can see that we have two minus signs right next to each other.
If that occurs, we can change the two minus signs to one positive sign. It's just a rule in math.
So, we can rewrite the problem:
-1/3 - (- 4/9) can be rewritten to:
-1/3 + 4/9
But!!! We're not finished yet. The denominators (that means bottom part of a fraction) are not the same.
The denominators most of the time have to be same.
We have a 3 and a 9...
How do we make them the same? I gotcha covered again.
There's the criss-cross method, also known as cross multiplication, but I won't go over that because there's an easier way for this problem.
Here's the easier way:
3 * ? = 9
? = 3
So, 3 * 3 = 9.
We can multiply the - 1/3 by 3 to get the common denominator of 9.
There's a rule for this too... what we multiply by the denominator, we also MUST multiply that same number to the numerator (the top part of a fraction).
So, - 1/3 * (3/3) = - 3/9.
We can then add the fractions together since they have the same denominator.
Here it is:
- 3/9 + 4/9
Since - 3/9 is negative, we subtract that from 4/9...
Rewritten, we have:
4/9 - 3/9 = 1/9.
The denominators don't get changed unless we multiply or divide, so we only do the math for the numerators.
1/9 is the answer.
Good luck, and if you have more questions then please leave a comment!
Then it will look like this: -1/3+(+4/9) = 1/9
Hope this helps.
What is the equation of the line shown in the graph?
Drag and drop the expressions to write the equation of the line in slope-intercept form.
y =_+_
Answers
y = 2x +4
Your answer is Y= 2x (a) + 4 (e)
The y intercept is 4 and the slope is 2
Factor comun polinomio de (2×+3)(3-r)-(2×-5)(3-r)
Answers
Pode-se factorizar:
(2x+3)(3-r)-(2x-5)(3-r) =
= (3 - r)(2x + 3 - 2x + 5)
= (3 - r)(8)
= 8(3 - r)
1. Which procedure could be used to graph the line represented by the following equation? Y=1/2x+3
A. Plot the x-intercept (3,0) and use the slope of 1/2 to find a second point.
B. Plot the Y-intercept (0,3) and use the slope of 1/2 to find a second point
C. Plot the X-intercept (1/2,0) and use the slope of 3 to find a second point.
D. Plot the Y-intercept (0,1/2) and use the slope of 3 to find a second point
Answers
we have
[tex]y=\frac{1}{2}x+3[/tex]
we know that
the slope m of the line is equal to
[tex]m=\frac{1}{2}[/tex]
Find the x-intercept
The x-intercept is the value of x when the value of y is equal to zero
so
For [tex]y=0[/tex] find the value of x
[tex]0=\frac{1}{2}x+3[/tex]
[tex]x=-6[/tex]
The x-intercept is the point [tex](-6,0)[/tex]
Find the y-intercept
The y-intercept is the value of y when the value of x is equal to zero
so
For [tex]x=0[/tex] find the value of y
[tex]y=\frac{1}{2}*0+3[/tex]
[tex]y=3[/tex]
The y-intercept is the point [tex](0,3)[/tex]
therefore
the answer is the option
B. Plot the Y-intercept (0,3) and use the slope of 1/2 to find a second point
Final answer:
To graph the line y = 1/2x + 3, plot the y-intercept (0,3) and use the slope of 1/2 to find another point on the line.
Explanation:
The correct procedure to graph the line represented by the equation y = ½x + 3 is to start by plotting the y-intercept and then using the slope to find a second point. The y-intercept is the point where the line crosses the y-axis. In this equation, the y-intercept is (0, 3) because when x is 0, y is 3. The slope of the line is ½, which means that for every 1 unit increase in x, y increases by ½ a unit. Therefore, starting at the y-intercept (0, 3), you can go up ½ unit and right 1 unit to find another point on the line.
The correct answer to the multiple-choice question is:
B. Plot the Y-intercept (0,3) and use the slope of 1/2 to find a second point
Please help? I need this like... NOW.
Answers
see attached picture for solution
answer is (2,5)
Hannah claims that -3 is not rational number because it is not written as a ratio of integers. Is she correct? Explain why or why not?
Answers
-3 can be written as -3/1.
If f(x) = 2x + 8 and g(x) = x^4, what is (g ° f)(-3)?
Answers
= g(f(x))
= (2x+8)^4
Plug x= -3 into this equation
(g ° f)(-3)
= (2(-3)+4)^4
= (-2)^4
= 16
Have an awesome day! :)
(g *f)(x) = (2x+8)^4
replace x with -3
(2(-3)+4)^4 =
(-6+4)^4 =
= (-2)^4
= 16
I feel like this is wrong but help plz
Answers
AB and AE are both on line BE
Shane works at a computer store. If he earns 20.93 from a 7% commission on the scale of a printer what is the price of the printer
Answers
now, we know that 20.93 is 7% of "x", since that's what Shane is getting in commission anyway, what is "x" then?
[tex]\bf \begin{array}{ccll} amount&\%\\ \text{\textemdash\textemdash\textemdash}&\text{\textemdash\textemdash\textemdash}\\ x&100\\ 20.93&7 \end{array}\implies \cfrac{x}{20.93}=\cfrac{100}{7}\implies x=\cfrac{20.93\cdot 100}{7}[/tex]
QUICKK EXPERTS/ACE OR ANYONE WHO WANTS TO HELP!!
Answers
Slope = 4/3, y intercept = -5/3
see attached picture:
Which of the following could be the number of real roots, including any repeated roots, of a quadratic polynomial with real coefficients? Select all possible answers.
0
4
5
6
Answers
A quadratic polynomial can have 0, 1, or 2 real roots, including repeated roots. The roots are determined by the discriminant. Numbers 4, 5, or 6 are not possible numbers of real roots for a quadratic polynomial.
Explanation:In Mathematics, specifically in Algebra, a quadratic polynomial with real coefficients can have either 0, 1, or 2 real roots, including any repeated roots. The number of roots is determined by the discriminant (the value under the square root in the quadratic formula). If the discriminant is greater than 0, the quadratic has 2 real roots. If it equals 0, there is 1 real root (a repeated root), and if it is less than 0, there are no real roots (there are 2 complex roots instead). Consequently, the possible number of real roots for a quadratic polynomial is not 4, 5, or 6.
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A quadratic polynomial with real coefficients can have 0, 1, or 2 real roots. Only '0 real roots' is a valid choice. This is determined based on the discriminant of the quadratic equation.
A quadratic polynomial with real coefficients is of the form [tex]\( ax^2 + bx + c = 0 \)[/tex], where ( a, b, ) and ( c ) are real numbers.
The number of real roots of a quadratic polynomial can be determined by its discriminant, [tex]\( \Delta = b^2 - 4ac \)[/tex]:
1. If [tex]\( \Delta[/tex] > 0, the polynomial has two distinct real roots.
2. If [tex]\( \Delta[/tex] = 0, the polynomial has one real root (a repeated root).
3. If [tex]\( \Delta[/tex] < 0, the polynomial has no real roots (it has two complex conjugate roots).
Based on this, the possible number of real roots, including repeated roots, for a quadratic polynomial with real coefficients are:
- ( 0 ) (when the discriminant is negative, there are no real roots)
- ( 1 ) (when the discriminant is zero, there is one repeated real root)
- ( 2 ) (when the discriminant is positive, there are two distinct real roots)
Given the options:
- 0
- 4
- 5
- 6
The only valid number of real roots for a quadratic polynomial with real coefficients from the provided options is: 0
Simplify the expression 96/8
Answers
use either calculator
or
long division method..
by using long division method we got,
8 | 96| 12
........8
______
.......16
.......16
_______
0
so, the result is 12
If f(x) = x + 2, find the value of x if f(x) = 12.
Answers
Let's plug in "12" for "f(x)" since they tell us:
12 = x +2.
Now, in order to get "x" by itself, we add 2 to each sides:
12 +2 = x, which then becomes x = 14.
Hope this helps!
May
can anyone help me with this questions?
Answers
Taxable amount $20.17
Tax amount $1.41
Total amount due $ 70.93
By which rule are these triangles congruent? A) AAS B) ASA Eliminate C) SAS D) SSS
Answers
We have 3 pairs of congruent sides from each triangles, including the shared side.
Have an awesome day! :)
Answer:
D) SSSStep-by-step explanation:
In the given image you can observe two triangles with congruent sides,
[tex]PQ \cong SQ\\PN \cong SN\\QN \cong QN[/tex]
Notice that all three corresponding sides are congruent. That means,
[tex]\triangle PQN \cong \triangle SQN[/tex], by SSS postulate.
The SSS postulate states that if two triangles have all three corresponding sides congruent, then those triangles are congruent.
Therefore, the right answer is D) SSS.
Can someone help me with algebra? I REALLY NEED IT.
Which of the following is the correct graph of the compound inequality 4p + 1 > −7 or 6p + 3 < 33?
A. a number line with open circles at negative 2 and 5 with shading in between.
B. number line with open dot at negative 2 with shading to the left and an open dot at 5 with shading to the right
C. number line with shading everywhere.
D. number line with open dot at negative 2 and a closed dot at 5 with shading in between.
Answers
The answer is B
I hope this helped :)
Use the descriminant to describe the roots of each equation. Then select the best description. 16x^2+8x+1=0
Answers
0
I don't know if this is correct
So the question says...
Suppose you have ∠SMB and m ∠SMB =125.35 °.
Part A: Determine the angle measure that is complement to ∠SMB, if possible. If ∠SMB does not have a complementary angle, then explain why it does not.
Part B: Determine the angle measure of the supplement of ∠SMB.
Part C: Determine the angle measure of the angle complement to ∠SMB’s supplement.
I’m stuck on this question so if anyone can help me with it that would be greatly appreciated. Thanks!
Answers
Part B. Two angles are supplementary if their sum is equal to 180°. So,
Supplementary angle = 180 - 125.35 = 54.65°
Part C. Complementary angle = 90 - 54.65 = 35.35°
The maximum number of significant digits in float values is up to 6 or 7.
a. True
b. False
Answers
Light travels 9.45 \cdot 10^{15}9.45⋅1015 9, point, 45, dot, 10, start superscript, 15, end superscript meters in a year. There are about 3.15 \cdot 10^73.15⋅107 3, point, 15, dot, 10, start superscript, 7, end superscript seconds in a year.How far does light travel per second?Write your answer in scientific notation.
Answers
Answer:
3 x 10^8
Step-by-step explanation:
I got it right on Kahn Academy :D
Assume your favorite soccer team has 2 games left to finish the season. the outcome of each game can be win, lose or tie. the number of possible outcomes is
Answers
The number of possible outcomes for the two remaining games is 9.
Explanation:The number of possible outcomes for the two remaining games can be found by multiplying the number of outcomes for each game. Since each game can have three possible outcomes (win, lose, or tie), there are a total of 3 outcomes for each game. Therefore, the number of possible outcomes for the two games is 3 x 3 = 9.
Does anyone know this?
Answers
y = 8.6 * cos(44.25)=
6.1602
Rounded to nearest hundredth = 6.16
PRE CALCULUS
HELP PLEASEEEEEEEEE
describe the transformations that produce the graph of g(x)=1/2(x-4)^3+5 from the graph of the parent function f(x)=x^3 give the order in which they must be preformed to obtain the correct graph
Answers
Notice the function f(x) = (x - 4)³ that a value '4' is subtracted from 'x' ⇒ This means the function f(x) is translated four units to the right.
Then the function f(x) = ¹/₂ (x - 4)³, the function (x - 4)³ is halved vertically ⇒ Half the y-coordinate
Then the function f(x) = ¹/₂ (x - 4)³ + 5 that a value '5' is added to ¹/₂ (x - 4)³ ⇒ This means the function f(x) is translated five units up
So the order of transformation that is happening to f(x) = x³ is translation four units to the right, half the y-coordinate, then translate 5 units up.
If f(x) = 3x + 2, what is f(5)?
A. 10
B. 1
C. 13
D. 17
Answers
f(x) = 3x+2
f(5) = 3(5) +2 = 15 +2 =17
Answer is D. 17
Orrin had $541.06 in his checking account, and a check that he wrote to his landlord for $560.00 was just deposit?
A.service fee
B.ATM fee
C. Overdraft fee
D. Overspending fee
Answers
Who knows how to solve 9= -2+ 2x+ 1 ?
And also x-4= -9+ x
Answers
Add 2 by both sides.
11 = 2x + 1
Subtract 1 from both sides.
10 = 2x
Divide by 2 on both sides.
5 = x
x - 4 = -9 + x
Add 4 to both sides.
x = -5 + x
Subtract x from both sides.
0 = -5
There are no solutions.
Jonathan has a bag that has 2 red marbles and 3 blue marbles inside of it if you were to pick one marble from the bag without looking what is the probability of picking a red marble
Answers
When Jonathan chooses a marble, we are saying that he is choosing the marble randomly.
Let's make a fraction. We want to know the chance of picking one of the 2 red marbles among all 5 marbles.
Divide 2 by 5
2/5
That's already a simplified fraction. If you want to convert this into decimal and into percentage, you would get
2/5
= 0.4
= 40%
Those are all acceptable answers.
Have an awesome day! :)