3 years ago

You buy one shirt for $22 and two pairs of shorts. Your total cost is $56. Assuming both pairs of shorts cost the same

Mathematics

1 answer:

Vlada [557]3 years ago

8 0

let the cost of sorts be x

then 2x + 22 = 56

2x = 56 - 22

x = 34/2

x = 17

So, it is C :)

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John took all his money from his savings account. He spent $110 on a radio and 4/11 of what was left on presents for his friend

svp [43]

Answer:

$1210

Step-by-step explanation:

Let x be total amount

First John spent $110 on a radio and 4/11 of what was left on presents for his friends so he was left with

$\frac{7}{11}(x-110)=\frac{7}{11}x-70$

Then he put 2/5 of his remaining money into a checking account

$\frac{3}{5}\left(\frac{7}{11}x-70\right)$

Rest he donated to charity

$420=\frac{3}{5}\left(\frac{7}{11}x-70\right)\\\Rightarrow \left(\frac{7}{11}x-70\right)=\frac{2100}{3}\\\Rightarrow \frac{7}{11}x-70=700\\\Rightarrow \frac{7}{11}x=770\\\Rightarrow x=1210$

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3 years ago

A number cube is rolled 198 times. How many times would you expect to roll a 5?

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Answer:

33 times

Step-by-step explanation:

we divide 198 by 6 because there are 6 sides on a dice and 199 ÷ 6 is 33

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3 years ago

If 4x = 28 then x = 7

Contact [7]

Answer:

correct

Step-by-step explanation:

4 times 7 is 28

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3 years ago

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Harrizon [31]

Answer:

Step-by-step explanation:

7-5

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nata0808 [166]

Answer:

the tree will be 11.04 feet tall

Step-by-step explanation:

4 x 0.22 (22%) = 0.88

every year it grows 0.88 foot.

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sorry if this is wrong!

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3 years ago