23-01-2018
Mathematics

contestada

Use the grid to create a model to solve the percent problem.

21 is 70% of what number?

Enter your answer in the box.

Use the grid to create a model to solve the percent problem 21 is 70 of what number Enter your answer in the box class=

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carlosego carlosego

17-05-2018

For this case we can make the following rule of three:
21 ------> 70%
x --------> 100%
Clearing x we have:
x = (100/70) * (21)
Rewriting we have:
x = (10/7) * (21)
x = 30
Thus,
21 is 70% of 30
Answer:
21 is 70% of 30

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