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Ksju [112]
2 years ago
8

URGENT!!!!!!!!!!!

Mathematics
2 answers:
Bingel [31]2 years ago
4 0

Answer:

D. 21

Step-by-step explanation:

replace 21 for r, 4(21)=84

Hope this helps! If you found my answer helpful, please consider marking me brainliest. Thank you!

Kazeer [188]2 years ago
3 0

Answer:

D. 21

Hope this helps!

Step-by-step explanation:

Because in order to find r, you need to divide both sides by 4 to get r = 21.

So that means there will be 21 rhinestones on each backpack.

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3w-1 divided by 3 minus 2w+1 divided by 3 =1
LiRa [457]

Answer:

w = 5

Step-by-step explanation:

(3w - 1) ÷ 3 - (2w + 1) ÷ 3 = 1

(Graph, just switch w to x)

3 0
2 years ago
Read 2 more answers
Shirtbarn is having a sale where everything in the store is 40% off. How much will be saved by purchasing $224 of cloths be at t
Hoochie [10]

Answer:

$89.60 will be saved by purchasing $224 of cloths be at the register

Step-by-step explanation:

This problem can be solved by a rule of three.

In a rule of three problem, the first step is identifying the measures and how they are related, if their relationship is direct of inverse.

When the relationship between the measures is direct, as the value of one measure increases, the value of the other measure is going to increase too.

When the relationship between the measures is inverse, as the value of one measure increases, the value of the other measure will decrease.

In this problem, we have the following measures:

-The total money

-The percentage of money

As the percentage of money increases, so does the total money. It means that the relationship between the measures is direct.

The problem states that Shirtbarn is having a sale where everything in the store is 40% off. It means that in every purchase, you save 40% of the money.

How much will be saved by purchasing $224 of cloths be at the register?

40% of 224 will be saved. So

$224 - 1

$x - 0.4

x = 224*0.4

x = $89.60

$89.60 will be saved by purchasing $224 of cloths be at the register

6 0
3 years ago
I am four times as old as my daughter. In 20 years time I shall be twice as old as her. How old are we now?
SashulF [63]

Answer:

If x is my daughter's age now, my age now is 4x. So now my daughter is 10 years old, and I'm 40 years old, and in 20 years she'll be 30 and I'll be 60, twice as hers.

Step-by-step explanation:

6 0
3 years ago
Alfonso earned a score of 87.5% on his test. he did 56 problems correctly. how many problems were on the​ test?
Yuri [45]
64. 87.5% in fractions is 7/8. We divide 56 by 7/8, and get to 64.
56 ÷ 7/8= 56 x 8/7= 448/7, which is reduced into 64.
5 0
3 years ago
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Explain if triangle ZHY is similar to triangle JHI . Justify your answer given the following information: HY = 3, YZ = 6, HZ = 7
mestny [16]
Yes, triangle ZHY and JHI are similar triangles because if you multiply each side on Triangle ZHY by 2, they equal the sides of the Triangle from IHJ.

For example, ZH x 2= JH  ,    YZ x 2= IJ
6 0
3 years ago
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