3 years ago

Please help teacher mean

Mathematics

1 answer:

lubasha [3.4K]3 years ago

7 0

218/21 — all added

10 8/21 — simplified

10.380952 — decimal this repeats :)

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

Delicious77 [7]

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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