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olga55 [171]
3 years ago
9

The sum of three numbers is 87. The third number is 2 times the second. The first number is 7 more that the second. What are the

numbers?
Mathematics
1 answer:
Marysya12 [62]3 years ago
3 0
<span>19 + 57 + 9 = 85 
Do you need farther explaining</span>
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What percent of 520 is 52
lukranit [14]
We can answer that in several ways.

If 52 is the 100%, then 520 is ten times that, which is 10*100%, therefore, 520 is 1000% of 52

We also can use a rule of three, simple, direct proportion to solve it:
52  ------> 100%
520 -----> x

x = (520)(100)/52
x = 1000
therefore 520 is the 1000% of 52
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y is inversely proportional to x^2, and y = 540 for a particular value of x. Find the value of y when this value of x is tripled
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Step-by-step explanation:

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If 2/3 cup of rice is needed to feed 4 people, how much rice will be required to make dinner for 16 people?
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Expanded form - (0×1+9×1/10+1×1/100+5×1/1000) miles per minute.

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