Mathematics Middle School

A sign says that the price on all music equipment is 30% off the original price. you buy an electric guitar for the sale price of $315.
A-what is the original price?
B-How much money did you save off of the original price?
C-What percent of the original price is the sale price?

Answers

Answer 1

Answer:

a. So the electric guitar is sold for a sale price of $315 after the discount. The discount was 30%. Even though we get that amount off, we still pay 70% of the original price, because 100% (original price) - 30% is 70%.

b. An equation that can help us find the regular price of the item is through writing and solving a proportion. Set it up like this:

315/x = 70/100

This is because 315 is part of the whole and is 70% of the value of x.

Step-by-step explanation:

Okay. Let's solve this by cross multiplying the values. 315 * 100 is 31,500. 70 * x is 70x. That simplifies to 31,500 = 70x. Didivde each side by 70 to isolate the x. 70x/70 cancels out. 31,500/70 is 450. Let's check this by multiply the number by 70% and see what happens. 450 * 70% (0.7) is 315. There. x = 450. The regular price was $450.

Answer 2

Answer:

a. $450

b. $135

c. 70%

Step-by-step:

[tex]\frac{70}{100} = \frac{315}{450}[/tex]  since these two fractions are equal to each other that means the orginal price is $450.

(sale price/original price)x100= % of original price

(315/450)x100=0.7=70%

Related Questions

A typical basketball player scores on 70% of free throw attempts. During a basketball practice, Lebron james attempted 40 free throws and was successful on 75% of them. How many free throws did he get? ( Give me methods as to how you got it ) I will mark brainiest who ever explans the most!

Answers

The answer is 30
40 times 3/4 is 30
40 times .75 is also 30

Mr. Smith got a new puppy, Stout! He went out and bought a bag of puppy chow for $27.99, but had a 15% off coupon.

1. What is the cost of the puppy chow after the discount?





2. With 6.5% sales tax, what would be the final price?

Answers

1. 27.99 divide by 100 x 85% = 23.79

2. 23.79 divide 100 x 106.5% = 25.34 i think !!
1. $27.99 - 15% = 23.79

2. $23.79 + = 6.5% = 30.29

I really need help this is due tomorrow

Answers

Answer:

0.938 m^2 or 15/16 m^2

Step-by-step explanation:

The formula for the area of a triangle of base b and height h is

A = (1/2)(b)(h).

Here, with b = 3/2 m and h = 5/4 m, the area is

A = (1/2)(1.5 m)(1.25 m) = 0.938 m^2 or 15/16 m^2

Isabella is 10% taller today than she was one year ago. Her current height is 176cm. How tall was she one year ago?

Answers

Answer:

0.3(4x-8)-0.5(2.4x+4)

1.2x-2.4-1.2x+2

x-0.4

Step-by-step explanation:

HELP ASAP PLS!
Graph the inequality below on the number line.

Answers

Answer:-3

Step-by-step explanation:

A snake has a length of 2.56 feet. What fraction is equivalent to the length of this snake in feet?

Answers

Answer: 25/64.
Explanation:
1/2.56 = 1/(64/25).
Then divide 1 by 64/25, which is 25/64.
That is your answer in simplest form and in fraction form.
Hope this helps!

In the equation |4x+7|=|19−2x|, what is the sum of all possible values of x?

Answers

Answer: x=2

Explanation:
4x2=8+7=15
2x2=4-19=15
4(2)+7=15
19-2(2)=15

help me out plsssssssssssssss

Answers

Answer:

I would say C or D but im goin' with C

Step-by-step explanation:

I hope this helps.

Answer:

D

Step-by-step explanation:

In temperaturethe difference between negative and positive is  written as absolute value  value

The same happens with distance with distance below ground and above ground, below sea level,above sea level,....

From -8 to 0---------8units

From 0 to 23--------23 units

Total units      I31I

HHHHHHHHHHHHHHHHEEEEEEEEEEEEEEEEEEELLLLLLLLLLLLLLP
number 2 is what is the area f the triangle

Answers

Answer:

42 for the rectangle

15 for the triange

Step-by-step explanation:

3×14=42

5×6÷2=15

42 , 15 - well good luck

11. Enter an angle that is supplementary with /_AXD in the figure below:

Use the angle symbol /_ in your answer.

Answers

Answer:

/9 AXD

Step-by-step explanation:

2. If x1 is 3 and x2 is 2, how would you use the numbers in the slope formula?​

Answers

Answer:

m = y2 - y1 / 2 - 3

Step-by-step explanation:

I believe it is asking you to plug in the numbers into the equation.

m=y2-y1/2-3 j agree with the other person that just answered

True or false
An outlier will affect the measure of center, such as the mean, median, or absolute mean deviation.

Answers

Answer:

True

Step-by-step explanation:

Outliers still are apart of the data, so it will effect the overall measurement because it is different from the other data collected.

Hope that helps!

Answer:

Answer:

True

Step-by-step explanation:

Outliers still are apart of the data, so it will effect the overall measurement because it is different from the other data collected.

Step-by-step explanation:

No links!!!

A stalactite is a mineral formation that hangs from the ceiling of a cave. A cone shaped stalactite has a height of 48 centimeters and a base circumference of 3.5pi centimeters. What is the volume of the stalactite? Round your answer to the nearest whole number.​

Answers

Answer:

615.75cm

Step-by-step explanation:

2)who ever gets this will get a brainlest

Answers

Answer:

the answer is 36

Step-by-step explanation:

you multiply 120 by .30

Answer:

36

Step-by-step explanation:

30/100*120=

=3600/100=

=36 students have completed their science projects.

Find the surface area of the prism or pyramid. Round to the nearest hundredth if necessary.

Answers

Answer:

I don't know how to do this but maybe photo math can help

Answer: 147.35

Step-by-step explanation:

SA=1 base tri. + 3 lateral faces

SA=bh/2 + 3(bh/2)

SA=(7)(6.1)/2 + 3(7)(12)/2

SA=42.7/2 + 252/2

SA=21.35 + 126

SA=147.35

Which statement about the picture below is true

For a polygon with 10 sides, which equation below represents the sum of the interior angles in the polygon?

sum = (360)(8) = 2880°
sum = (360)(10) = 3600°
sum = (180)(8) = 1440°
sum = (180)(10) = 1800°

Answers

Correct answer is:

1800°
the correct answer is 1440.

The equation to find the sum of interior angles in a polygon is s = 180(n-2), n being the amount of sides and s being the sum. To solve you would do s = 180(10-2), s = 180(8), and s = 1440. hopefully that makes sense haha. use the equation s=180(n-2) :))

what is -x divided by 4?

Answers

The answer is just -x/4 because you can divide a variable
the answer is basically -x/4

4.) Dylan scored a 95, 78 and 89 on his first three science tests. Write and solve an inequality to determine what is the lowest possible score he can get on his fourth test to average at least a 90 in the class.

Answers

Answer:

98

Step-by-step explanation:

Dylan must get at least a 98% to reach an average of 90. (95+78+89+98)÷4=90.

98 is your answer for

9.2=g+11.8
1-step equations

Answers

Answer:

g = 9.2 - 11.8 = -2.6

Step-by-step explanation:

g= -2.6


Alternative form: -13/5 , g=2 3/5

T or F : A triangle can have sides with the given lengths.

2 cm, 9 cm, 6 cm







[AB > C ]

[AC > B]

[BC > A]

Answers

Answer:

Step-by-step explanation:

The sum of the lengths of any two sides of a triangle must be greater than the length of the third side. ... No; The sum of the lengths of any two sides of a triangle must be greater than the length of the third side. ANSWER: No; 9.

Three cards, one labeled "A," one labeled "T," and one labeled "C," are picked in random order. Based on the tree diagram, which is a valid conclusion. Select all that apply. There are three correct answers.

The probability of the letters spelling CAT is 1/6.

The probability that A will be the first letter chosen is 1/15

15 cards must be drawn to determine the probability of spelling CAT

The sample space consists of 6 outcomes.

The probability that T will be the first letter chosen is 1/3.

Answers

The probability of the letters spelling CAT is 1/6; the sample space consists of 6 outcomes; the probability that T will be the first letter chooses in 1/3

If you count the amount of options at the end there are 6 which means the sample space is 6 and that you have a 1/6 chance of getting any of the options. Because there are only 3 cards, there is a 1/3 chance of any given card being chosen first.

Pls help no links pls

Answers

Answer:

A

Step-by-step explanation:

An integer is any positive or negative whole number.

A the opposite of -3 is three 3

Could someone tell me the answer to these please? Thanks!

Answers

Answer:

1. < 2. > 3. >

4. < 5. > 6. <

7. < 8. > 9. =

10. > 11. < 12. >

sorry if any of them are wrong

Answers:

1. >

2. >

3. >

4. <

5. <

6. <

7. <

8. >

9. <

10. >

11. <

Give the value of the digit 5 in each number.

45.916


1,277.5


950.44


6.157

Answers

Answer:

ones, tenth, tens, hundredth

Step-by-step explanation:

Here’s the riddle!
I’m aware it sayas “step 3” but i found it on a riddles website

Answers

Answer:

l have no clue

Step-by-step explanation:

Answer:

36 ft

Step-by-step explanation:

Find the area of the figure.

Answers

Answer:

27.13

Step-by-step explanation:

28 1/2 that’s the answer:)

help! giving brainlest thx!

Answers

Answer:

The first one is an Obtuse triangle and the second is an Acute isosceles triangle :)

Step-by-step explanation:

Hope this helped!

Answer:

The first answer is the last one and the other is the third

Step-by-step explanation:

the the first one is in obtuse because this wider than 90° and the other one is shorter than 90°

Estimate the perimeter of the figure to the nearest whole number.

Answers

16 is your answer to the question

HELLP MEEEEE BRAINLIEST

Answers

Answer:

A. $345

B. $420

Step-by-step explanation:

A. Credit Score of 700= $23.00 on 1,000 financed

$15,000 financed so 15 payments

15 x 23 = $345

B. Credit Score of 600= $28.00 on 1,000 financed

$15,000 again

15 x 28 = $420

GIVE ME BRAINLIEST?!

1. 345

2. 420



ANSWER FOR BRAINLIEST

What additional information do you need to find the total amount of cardboard needed for the box?

Answers

Answer:

The width I think, I may wrong

Surface area

You know the width and length
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