1. 80% Of What Number Is 12 = 2. 7 Is 70% Of What Number =​ With Solution

1. 80% of what number is 12 =
2. 7 is 70% of what number =​

with solution

Answer:

1.) 80% of what number is 12 ?

[tex]0.80 \: \times \: n \: = \: 12 \\ \frac{0.80 \: \times \: n}{0.80} \: = \: \frac{12}{0.80} \\ \\ n \: = \: 15[/tex]

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2.) 7 is 70% of what number?

[tex]7 \: = \: 0.70 \: \times \: n \\ \frac{7}{0.70} \: = \: \frac{0.70 \: \times \: n}{0.70} \\ \\ n \: = \: 10[/tex]