25%
12x0.25=3
12+3=$15
Using percentages we know that the percentage increase is 1.25%.
What is the percentage?A percentage is a figure or ratio stated as a fraction of 100 in mathematics. Although the abbreviations "pct.", "pct.", and occasionally "pc" is also used, the percent symbol, "%," is frequently used to indicate it. A % is a number without dimensions and without a standard measurement.A value or ratio that may be stated as a fraction of 100 is referred to as a percentage in mathematics.So, the percentage increase:
Formula: Original price + amount increases/original priceThe amount increased: 15 - 12 = $3Now, calculate as follows:
Original price + amount increases/original price12 + 3/1215/121.25%
Therefore, using percentages we know that the percentage increase is 1.25%.
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Denise went bowling with her friends at AMF. She paid $3 to rent shoes and then $4.75 for each game of bowling. If she spent a total of $22, then how many games did Denise bowl?
Answer: 4 games
Step-by-step explanation:
Whether Denise bowls or not, he incurs rent for bowling shoes and per bowling he has to pay $4.75 while he rented shoes for $3.
Then the equation is:
y = 3 + 4.75x
Where
y is the total cost
x is Number of bowling
y = 3 + 4.75x
3 + 4.75x = 22
4.75x = 22 - 3
4.75x = 19
x = 19/4.75
x = 4
Denise bowled 4 games.
Final answer:
To determine the number of games Denise bowled, an equation was set up using the cost of shoe rental and per game cost, and solved algebraically. Denise bowled 4 games.
Explanation:
The subject of this question is Mathematics, specifically focusing on simple algebra and solving equations. Denise's total expense for bowling is composed of a fixed cost for shoe rental and a variable cost for the games she played. The total cost is the sum of these two amounts. We can set up an equation to find out how many games she played:
Let x be the number of games Denise bowled. The cost of shoe rental is a fixed $3, and the cost per game is $4.75. So, the equation representing the total cost is:
3 + 4.75x = 22
Now, we will solve for x:
Subtract 3 from both sides of the equation:4.75x = 22 - 34.75x = 19Divide both sides by 4.75 to isolate x:x = 19 / 4.75x = 4Therefore, Denise bowled 4 games. This is a typical middle school algebra problem involving linear equations and is a good example of applying math skills to real-life situations such as budgeting and planning.
A gaming console that is $300 plus 8% tax. What is the final cost of the console? (Round to the nearest cent) Please explain :)
Answer: $324
Explanation: I changed the 8% to 0.08 and multiplied that by 300 and got 24. Then I added 300+ 24 to get $324.
Answer:
324
Step-by-step explanation:
final cost = (100+8)% of 300 = 324
Evaluate p-3 for:
a)p = 20
b)p = 10
c)p = 5
Answer:
a. 17
b. 7
c. 2
Step-by-step explanation:
a. (20)-3=17
b. (10)-3=7
c. (5)-3=2
PLZ HELP ASAP 5 STAR N BRAINLEST N THANKS TINGY BUTTONS PLZ ASAP WITH ANSWER 13 POINTS
Answer:
⅕
Step-by-step explanation:
x(x - 2) + x + 2x + 8 + 10 = 60
x² - 2x + 3x - 42 = 0
x² + x - 42 = 0
x² + 7x - 6x - 42 = 0
x(x + 7) - 6(x + 7) = 0
(x + 7)(x - 6) = 0
x = 6, -7(not possible)
x = 6
P(B/20th century) = x/[x(x-2) + x]
= 6/[6(4)+6]
= 6/30
= 1/5
Help ASAP!! Which pair of ratios are proportional?
A.7/14 and 20/40
B.25/100 and 5/150
C.18/24 and 16/12
D.6/21 and 2/42
Answer:
A
Step-by-step explanation:
This can be easily seen. 7/14 simplified is 1/2. When 20/40 is simplified, it's also 1/2
What is the arc measure of CD in degrees?
Answer:
An arc is a segment of a circle. An arc measure is the measure of an angle that the arc creates in the center of a circle, while an arc length is the span of the arc. This measure can be given in degrees or radians. We can easily convert between the two using the fact that pi radians = 180 degrees.
Step-by-step explanation:
A circle has a circumference of 12.It has an arc length 11. What is the central angle of the arc,in degrees?
Answer:[tex]330^{\circ}[/tex]
Step-by-step explanation:
Given
Circumference of circle [tex]C=12\ units[/tex]
Arc length [tex]l=11\ units[/tex]
we know arc length is given by
[tex]l=\frac{\theta }{360^{\circ}}\times 2\pi r[/tex]
substituting value we get
[tex]11=\frac{\theta }{360}\times 12[/tex]
[tex]\frac{11}{12}=\frac{\theta }{360}[/tex]
[tex]\therefore \ \theta =330^{\circ}[/tex]
The central angle of the arc is approximately 330 degrees.
The question involves finding the central angle of an arc in degrees when the circumference of the circle is 12 and the arc length is 11. To solve this, it's essential to understand the relationship between the arc length, the central angle, and the circumference of the circle.
The formula we use is (Central Angle in degrees) / 360 = Arc Length / Circumference. Given that the circumference is 12 and the arc length is 11, we can substitute these values into the formula to find the central angle.
Thus, the calculation is as follows: (Central Angle in degrees) / 360 = 11 / 12.
By cross-multiplication, we find that the
Central Angle in degrees = (11 / 12) × 360.
This gives us a central angle of approximately 330 degrees.
James charles was buying beauty products at Ikea while T-posing cause he can. He got lost at Ikea for 24 hours, how many minutes are in 24 hours?
Answer:
1440 minutes
Step-by-step explanation:
24 hours a day x 60 minutes an hour = 1440 minutes on a day
Amelia wants to put wood shavings in her ferret's cage. The floor of the cage measures 1 yard wide by 9 feet long. One bag of shavings covers 5 square feet. How many bags will Amelia have to buy to cover the floor of the cage?
Answer:
6 bags
Step-by-step explanation:
1 yard is 3 feet, so the area of the cage is ...
A = LW
A = (9 ft)(3 ft) = 27 ft^2
At 5 square feet per bag, the number needed is ...
(27 ft^2)/(5 ft^2/bag) = 5.4 bags
We assume that Amelia can only buy whole bags, so ...
Amelia will have to buy 6 bags to cover the floor of the cage.
Find the length of side AB
Give answer to 3 significant figures
Answer:
AB = 8.856 cm
Rounded would get you 8.86 cm.
Hope this helps.
Step-by-step explanation:
I don't know how I got it but it's right.
Please help me I really need the answer
Answer: wow that’s long um hold I will answer in 5 min
Step-by-step explanation:
Answer:
oh I don't know, just need some points
Mrs. Cho wrote the following problem on the board.
Problem: StartFraction 1 Over x squared EndFraction minus StartFraction 2 Over y EndFraction divided by y minus 2 x squared
Step 1: StartFraction y Over x squared y EndFraction minust StartFraction 2 x squared Over x squared y EndFraction divided by y minus 2 x squared
Step 2: StartFraction y minus 2 x squared Over x squared y EndFraction divided by StartFraction y minus 2 x squared Over 1 EndFraction
Step 3: StartFraction y minus 2 x squared Over x squared y EndFraction times StartFraction 1 Over y minus 2 x squared EndFraction
What should Mrs. Cho do next?
Answer:
Multiply the numerators and the denominators.
Step-by-step explanation:
Problem: [tex]\dfrac{1}{x^2}- \dfrac{2}{y}\div y-2x^2[/tex]
Step 1: [tex]\dfrac{y}{x^2y}- \dfrac{2x^2}{x^2y}\div y-2x^2[/tex]
Step 2: [tex]\dfrac{y-2x^2}{x^2y} \div \dfrac{y-2x^2}{1}[/tex]
Step 3: [tex]\dfrac{y-2x^2}{x^2y} X \dfrac{1}{y-2x^2}[/tex]
The next step would be to multiply the numerators and the denominators.
Step 4: [tex]\dfrac{y-2x^2}{(x^2y)(y-2x^2)}[/tex]
Since [tex]y-2x^2[/tex] is common in the numerator and denominator, it divides itself, thus our result is:
[tex]\dfrac{1}{x^2y}[/tex]
An equilateral triangle has a perimeter of 15x + 33x feet. What is the length of each side?
x feet
5+ 11x2 teet
5x2 + 11 feet
53 - 11 feet
Answer:
is there any mistake in your question?
Step-by-step explanation:
(15x + 33x) / 3 = 5x + 11x = 16x
The yearly profits of a company is $35,000. The profits have been decreasing by 8% per year. What will be the profits in 7 years? Round your answer to the nearest dollar.
TURN THE PERCENT TO A DECIMAL! (divide by 100 or move decimal place 2 times left)
Brianna’s teacher asks her which of these three expressions are equivalent to each other.
Expression A:
9
x
−
3
x
−
4
Expression B:
12
x
−
4
Expression C:
5
x
+
x
−
4
Brianna says that all three expressions are equivalent because the value of each one is
−
4
when
x
=
0
.
Brianna’s thinking is incorrect.
Answer:
Expression A and C are correct because 9x - 3x = 6x and 5x + x = 6x, then -4
After simplification, Expression A (6x - 4) and Expression C (6x - 4) are equivalent to each other, but Expression B (12x - 4) is not equivalent to the other two.
The student's teacher presented a problem to determine the equivalence of three algebraic expressions: Expression A (9x - 3x - 4), Expression B (12x - 4), and Expression C (5x + x - 4).
Brianna incorrectly states that all three expressions are equivalent simply because they all evaluate to -4 when x = 0. However, this is a misinterpretation, as equivalence between algebraic expressions means that they yield the same result for all values of x, not just a single value.
To correct this, we simplify each expression:
Expression A: 9x - 3x - 4 simplifies to 6x - 4.
Expression B: 12x - 4 remains the same.
Expression C: 5x + x - 4 simplifies to 6x - 4.
After simplification, we see that Expression A is equivalent to Expression C, both simplifying to 6x - 4. However, Expression B remains different, with the term 12x - 4.a
Vicky plans to wallpaper this wall. She buys
some rolls of wallpaper.
Each roll of wallpaper is 53 cm wide and 12 m
long. The cost of one roll of wallpaper is £12.45.
Work out the cost of wallpapering the wall. Vicky's wall is 5.7m wide and 2.8m long
Answer:
approx 31.24 euro
Step-by-step explanation:
area of vickys wall =5.7 × 2.8=15.96
area covered by one wallpaper=0.53×12=6.36
no of wall paper required=area of wall/area of 1 wall paper
=15.96÷6.36=2.50943396226
cost of 1 wall paper=12.45
cost of 2.50943396226 wall paper=31.2424528302 euro
Answer:
4498.91
Step-by-step explanation:
ANSWER ASAP! 25 POINTS! ANSWER IS THERE HANDWRITTEN I JUST NEED THE WORK.
Answer:
10x²+3x-4
(2x-1)(5x+4)
x= 1/2
x= -4/5
Nhich equation results from taking the square root of both sides of (x+9)2=25
Answer:
square root of 25=5 and square root of (x+9)=(x+9) so the answer is.... x+9=+-5
Step-by-step explanation:
Lindsay purchased a pocketbook for $45 and a pair of shoes for $55. The sales tax on the items was 6%. How much sales tax did she pay?
Answer: I believe the answer is $6.00
What is the name of this polygon?
A. rectangle
B. square
C. trapezoid
D. rhombus
Answer:
That is a rhombus.
Brainliest is greatly appreciated
Answered by: Skylar
5/20/2020
1:37 PM (Eastern Time)
Answer:
This is a rhombus because it has 4 verticles, 4 edges and 2 lines of symmetry.
I know I'm late but hope this helps!!
Please help me!! Will give brainliest!!
Answer:
A) 53
B) 53%
C) 37%
D) 63%
E) Yes.
Step-by-step explanation:
A) 53 people did not get headaches at all.
B) To solve for the percentage of participants that reported they did not get a migraine headache, you will need to divide out of the TOTAL number of people:
53/100= .53 --> Convert to percentage--> .53×100 = 53%.
C) To find this value, you will need to divide out of the amount of people that took MEDICINE and got a headache:
22/60≈0.367--> Convert to percentage --> 0.367×100≈37%
D) This percentage will be found out of who did NOT take the medicine:
25/40= 0.625 --> Convert to percentage --> 0.625×100≈63%
E) The medicine did help prevent migraine headaches because the percentage that got migraines with the medicine is lower than the percentage that got migraines WITHOUT the medicine.
I need help please and thank you!
Answer:
(20) 15 and 90
(21) $10 for adults and $4.50 per child
(22) 10 quarters and 15 dimes
Step-by-step explanation:
lol too much to explain but im certain im correct abt them. Good luck
The length of a rectangle is 7 inches longer than its width. If the area of the
rectangle is 144 square inches, what are the dimensions?
The dimensions of the rectangle are 9 inches (width) and 16 inches (length) as obtained from solving the quadratic equation derived from the facts provided.
Explanation:To solve this problem, let's denote the width of the rectangle as x in inches. Since we know that the length of the rectangle is 7 inches longer than its width, we can write it as x + 7 inches. The area of a rectangle is calculated by multiplying its length by its width. Here, it's given as 144 square inches.
Setting up the equation for the area, we get x(x + 7) = 144.
Solving this quadratic equation, we find that x = 9. As a result, the width is 9 inches and the length, being 7 inches longer, is 16 inches. Therefore, the dimensions of the rectangle are 9 inches by 16 inches.
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Find the pre-image given the image and scale factor. Scale factor: n = 2 Identify the coordinates of the image. A'(–2, –4) B'(2, 1) Divide the coordinates by the scale factor. The pre-image of B' is B(1, 1 2 ). What is the pre-image of A'?
Answer: the answer is -1, -2
Step-by-step explanation:
13 out of 19 students said they were attending the football game. About how many students out of 500 would you expect to attend the football game? *
1 point
13
730
342
19
Step-by-step explanation:
The answer is 342
Because when we divide 19 by 13 = 1.46
Then when we divide 500 by 1.46 = 342
Solve the inequality: –3(–3x – 4) < 66
To solve the inequality -3(-3x - 4) < 66, first distribute the -3, then isolate the variable term resulting in 9x < 54 and divide by 9 to find x < 6 as the solution set.
Explanation:Solving the Inequality
To solve the inequality -3(-3x - 4) < 66, we first distribute the -3 across the terms within the parentheses, which gives us 9x + 12 < 66.
Next, we subtract 12 from both sides to isolate the term with the variable, resulting in 9x < 54. Finally, we divide both sides by 9 to solve for x, which yields x < 6.
Thus, the solution set to the inequality is all real numbers less than 6.
Information about how the students at Vista View High School got to school this morning is shown in the table.
A 6-column table has 4 rows. The first column has entries Tenth grade, eleventh grade, twelfth grade, Total. The second column is labeled Walk with entries 104, blank, 99, 314. The third column is labeled Bicycle with entries 8, 10, blank, blank. The fourth column is labeled Bus with entries 96, 72, 28, 196. The fifth column is labeled Car with entries blank, 88, blank, 276. The sixth column is labeled Total with entries 282, blank, 252, 815.
Out of all 252 twelfth graders, how many rode in a car to school?
Answer:
D) 114
Step-by-step explanation:
got it right on edge
Out of all 252 twelfth graders, the number of students that rode in a car to school is 114.
How many twelfth graders rode in a car to school?The first step is to determine the total number of students that rode a bicycle to school
Students that rode a bicycle to school = 815 - (276 + 196 + 314) = 29
The second step is to determine how many twelfth graders rode a bicycle to school: 29 - (8 + 10) = 11
Number of twelfth graders that rode a car to school = 252 - (99 + 11 + 28) = 114
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The polynomial f(x) is written in factored form:
f(x) = (x - 9)(x + 12)(x - 24)
What are the zeros of the polynomial function?
Ox=-9, x = 9, x = -12, x = 12, x = -24, x = 24
O x = -9, x = 12, x= -24
x = 9, x= -12, x = 24
x = 9, x= 12, x = 24
Answer:
{-12, 9, 24}
Step-by-step explanation:
Set the given f(x) = (x - 9)(x + 12)(x - 24) = to 0. Then, one by one, set each factor = to 0 and solve for x: We get the zeros {-12, 9, 24}
Answer: x = 9, x = −12, x = 24
Someone please help me with an explanation please! Asap would be nice :)
HOW TO DETERMINE SLOPE AND Y-INTERCEPT: Use the instructions below to answer this question.
EQUATION: y=[tex]\frac{-3}{4}[/tex]x-3
-------------------------------------------------
INSTRUCTIONS:FINDING THE Y-INTERCEPT:
Do this simply by finding the number your graph starts at on the Y-Axis (vertical line)! In this case, it's at -3!
FINDING SLOPE:
Remember that slope is rise over run ([tex]\frac{rise}{run}[/tex])
RISE = How far the line goes up and down.
RUN = How far the line goes left or right.
HOW DO I FIND IT? All you have to do is count both rise and run from one point on the line to another! WARNING: The point must hit at a vertex, it cannot be counted if it is in the center of the box, or anywhere that does not touch the edge. I also suggest starting from the Y-Intercept and counting.
GOING LEFT OR DOWN: This is a positive number
GOING RIGHT OR UP: This is a negative number.
(You will see how this applies, below, yayyyy)
CALCULATING OUR NUMERATOR, AKA RISE:
Starting from the y, to get to the next point on the line, you can see we have to go down three. This means our numerator is -3!
CALCULATING OUR DENOMENATOR, AKA RUN:
Starting from where we just stopped, we must continue getting to the next point, and to do that, you can see we have to go to the right four! This means our denomenator is 4!
Given: ASTU with ST || XY
Prove: * -
Statements
1. ASTU with ST || XY
Reasons
1. given
2. def. of corresponding
angles
2. 21 and 22 are
corresponding angles
3. 23 and 24 are
corresponding angles
4. 21 - 22; 23 24
3. def. of corresponding
angles
4. corresponding angles
theorem
5.
5. AA similarity theorem
Complete the steps of the proof.
6. def. of similar triangles
6. U = Tu
7. SU = SX + XU:
TU = TY + YU
8. SXEUXU – TYHYU
7. segment addition
postulate
8. substitution property
X
XII
TY
VII
Answer: Here is the answer
Step-by-step explanation:
The correct missing proof are Δ UXY ~ Δ UST and subtraction property of equality.
What are similar triangles?Two triangles are said to be similar if their corresponding sides are equal and if the ratio of the sides are in equal ratios.
The proof is as follows :-
The given steps are;
1. Δ STU with ST || XY, 1. Given
2. ∠1 and ∠2 are corresponding angles, 2. Def of corresponding angles
3. ∠3 and ∠4 are corresponding angles, 3. Def of corresponding angles
4. ∠1 ≅ ∠2; ∠3 ≅ ∠4, 4. Corresponding angles theorem
5. Δ UXY ~ Δ UST 5. AA similarity theorem
6. SU/XU = TU/YU 6. Def of similar triangles
7. SU = SX + XU, TU = TY + YU, 7. Segment addition postulate
8. (SX + XU)/(XU) = (TY + YU)/(YU) 8. Substitution property
9. SX/XU + 1 = TY/YU+1 9. simplification
10. SX/XU = TY/YU 10. subtraction property of equality.
Hence, the correct missing proof are Δ UXY ~ Δ UST and subtraction property of equality.
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