91Ó°ÊÓ

Solve using the multiplication principle. Don't forget to check! $$ 84=7 n $$

Solve. What percent of 150 is \(39 ?\)

Solve and check. Label any contradictions or identities. $$3(y+4)=3(y-1)$$

Solve. What percent of 300 is \(57 ?\)

Solve. 14 is \(30 \%\) of what number?

Solve using the addition principle. Graph and write both set-builder notation and interval notation for each answer. $$ 2 x+4 \leq x+9 $$

Solve. 54 is \(24 \%\) of what number?

Use an inequality and the five-step process to solve each problem. The formula \(R=-0.0065 t+4.3259\) can be used to predict the world record, in minutes, for the 1 -mi run \(t\) years after \(1900 .\) Determine (in terms of an inequality) those years for which the world record will be less than \(3.6 \mathrm{min}\)

Solve. What percent of 60 is \(75 ?\)

Solve. What is \(40 \%\) of \(2 ?\)