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kupik [55]
3 years ago
9

If y = 21, when x = 7, find y when x = 28.

Mathematics
2 answers:
Tcecarenko [31]3 years ago
8 0

Answer:

84

Step-by-step explanation:

x=7 x=28

y=21 y=84

is simple ratio problem

alexandr1967 [171]3 years ago
3 0

<em><u>Answer:</u></em>

<em><u>Answer: y = 21 </u></em>

<em><u>Answer: y = 21 when x = 7</u></em>

<em><u>Answer: y = 21 when x = 7so x = 28 </u></em>

<em><u>Answer: y = 21 when x = 7so x = 28 then y = 84</u></em>

<em><u>Answer: y = 21 when x = 7so x = 28 then y = 84Step-by-step explanation:</u></em>

<em><u>Answer: y = 21 when x = 7so x = 28 then y = 84Step-by-step explanation:y = 84 = 21 × 4</u></em>

<em><u>Answer: y = 21 when x = 7so x = 28 then y = 84Step-by-step explanation:y = 84 = 21 × 4x = 28 = 7 × 4</u></em>

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 <span>Your Answer: D 

Why.... 

You can make equations out of the information 
Let L be Lin, G be Greg, and F be Fran 

L = 4 + G ---"Lin sold 4 more shirts than Greg" 
F = 3L ---"Fran sold 3 times as many shirts as Lin" 
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Use F + G + L = 51 
Substitute the equations in for F and L (because you need to know the G) like this.... 

(3L) + G + (4+G) = 51 

You still have a variable besides G in there... you can use the L= 4+G and substitute again so that there are only G's 

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16 + 5G = 51 </span>
6 0
4 years ago
Is 10−−√ greater than, less than, or equal to 5? Use the drop-down menus to explain your answer. Because 10 lies between two con
Ierofanga [76]

Answer:

\sqrt{10} < 5

Step-by-step explanation:

Given

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Since:

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3 0
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Step-by-step explanation:

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income tax rate 5%. what is the person's income before taxes if the amount of money taken out in taxes is $100?
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Answer:

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