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Ira Lisetskai [31]
3 years ago
14

Mary bought wallpaper for her bathroom. She purchased 5 rolls of wallpaper for $48.50. How much does each roll cost?

Mathematics
1 answer:
iris [78.8K]3 years ago
5 0

48.50$ : 5=9,7$

Answer: One roll costs 9,7$.

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At a concert, 20% of the audience members were teenagers. if the number of teenagers at a concert was 360, what was the total nu
Harlamova29_29 [7]

Answer:

The total number of audience members is 1800.

Step-by-step explanation:

In order to find this, we need to divide the number of teenagers by the percentage share.

360/.2 = 1800

7 0
3 years ago
A rectangle has a height of 5 and a width of 4x2– 2x - 6.
joja [24]

Answer:

area = 20x^2 - 10x - 30

Step-by-step explanation:

5(4x2 - 2x - 6)

area = 20x^2 - 10x - 30

5 0
2 years ago
The formula for the perimeter of a rectangle is p=2(1+w) solve for w.
Dvinal [7]
P=2*(l+w)
p=2l+2w
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w= (p-2l)/2
3 0
3 years ago
Tarana mailed 20 greetings cards. 9 of them were mailed to USA. What percentage of the cards were mailed to USA?
Elza [17]

Answer:

45%

Step-by-step explanation:

9/20=0.45 (Divide it first), 45/100=45% (45/100 because 100 makes 1 whole -all 20 cards-)

7 0
3 years ago
(NEED DONE SOON) The measure of two supplementary angles are 4x - 24 and 4(2x - 3). <br> What is x
Zarrin [17]

Answer:

x = 12

Step-by-step explanation:

A pair of supplementary angles added together MUST equal 180. Therefore, as you are given two angles with the measures of (4x - 24) and 4(2x - 3), they must add together to equal 180. So, we get this equation:

(4x - 24) + 4(2x - 3) = 180

4x - 24 + 8x - 12 = 180 (we distributed 4(2x-3))

12x - 36 = 180

12x = 144

x = 12, -12

Therefore, x is 12 because -12 would mean that (4x-24) and 4(2x-3) are both negative, which is impossible for an angle measure.

5 0
2 years ago
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