Question

for problems 5-12, solve. show your work.

1. $\frac{x}{7}=3$
2. $120=10n$
3. $\frac{4}{3}n=6$
4. $8p=72$
5. $3.36=1.6f$
6. $18=\frac{9}{10}n$

Explanation:

Step1: Solve $\frac{4}{3}n=6$

Multiply both sides by $\frac{3}{4}$:
$n = 6 \times \frac{3}{4} = \frac{18}{4} = \frac{9}{2}$

Step2: Solve $8p=72$

Divide both sides by 8:
$p = \frac{72}{8} = 9$

Step3: Solve $3.36=1.6f$

Divide both sides by 1.6:
$f = \frac{3.36}{1.6} = 2.1$

Step4: Solve $18=\frac{9}{10}n$

Multiply both sides by $\frac{10}{9}$:
$n = 18 \times \frac{10}{9} = 20$

Answer:

1. $n=\frac{9}{2}$
2. $p=9$
3. $f=2.1$
4. $n=20$