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rusak2 [61]
2 years ago
12

Sarita bought an MP3 player on sale for 30% off the regular price. Sarita also had a coupon which offered an additional $10.00 o

ff the sale price. If the regular price of the MP3 player was $75.00, what was the final sale price of the MP3 player before tax? $52.50 O $22.50 KA 0 $45.50 O $42.50 1 2 3 4 5 6 7 8 9 10 Next Sign out 0 US​
Mathematics
1 answer:
Anna [14]2 years ago
8 0

Answer:

$42.50

Step-by-step explanation:

First, we can take the 30% sale into account. We can start by converting 30% into a decimal by dividing it by 100: 30/100 = 0.3. Then, we can multiply that by the original price, 75, to get 75 * 0.3 = 22.5 as the amount given off due to the sale. We can subtract this from 75 to get our sale price of 75 - 22.5 = 52.5. Next, we can utilize the other coupon to get an additional $10 off, so we can subtract that from the original sale price to get the final sale price of

52.5 - 10 = 42.5

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The equation of line u is y = 9/2x+1. Line v is perpendicular to u. What is the slope of line v
lukranit [14]

Answer:

Step-by-step explanation:

The slope of line u is 9/2; the line perpendicular to that is the opposite reciprocal...opposite sign and the flip of the fraction. The perpendicular slope is -2/9

5 0
3 years ago
Which is a true statement about an exterior angle of a triangle?
svlad2 [7]

Answer:

B. It forms a linear pair with one of the interior angles of the triangle.

hope this helped! <3

6 0
3 years ago
How do you know what to split 26 into ?
madam [21]

Answer:

see explanation

Step-by-step explanation:

Assuming you are factoring the expression

Given

4y² + 26y + 30 ← factor out 2 from each term

= 2(2y² + 13y + 15) ← factor the quadratic

Consider the factors of the product of the coefficient of the y² term and the constant term which sum to give the coefficient of the y- term.

product = 2 × 15 = 30 and sum = 13

the factors are 10 and 3

Use these factors to split the y- term

2y² + 10y + 3y + 15 ( factor the first/second and third/fourth terms )

= 2y(y + 5) + 3(y + 5) ← factor out (y + 5) from each term

= (y + 5)(2y + 3)

Thus

4y² + 26y + 30

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5 0
3 years ago
Find the volume of a pyramid with a square base, where the side length of the base is
MatroZZZ [7]

Answer:

1529.4 m^3

Step-by-step explanation:

We will use the formula V = 1/3*h*B for the volume of the pyramid, where V is volume, h is height, and B is are of the base.

First, since we know h and are looking for V, we need B. To find this, since it has a square base, we multiply b, the base length, by itself. 15.3m * 15.3m = 234.09m^2.

Next, we plug into the formula.

V = 1/3*19.6m*234.09m^2

And simplify:

V= 1/3 * 4,588.164m^3

V= 15.29.3879....

Last, round to the tenth

1529.4 m^3

5 0
3 years ago
What are the coordinates of (-3,4) when it is reflected over the y-axis.
AysviL [449]

Answer:

D. (4,3)

Step-by-step explanation:

(-3,4)

Reflection in the y-axis:

Same y, -ve x

(3,4)

Reflection in y = x

(x,y) goes to (y,x)

(3,4) goes to (4,3)

3 0
3 years ago
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