Chapter 3

Solve the equation. Round the result to the nearest hundredth. Check the rounded solution. $$ 18-3 y=5 $$

Solve the equation. $$ 11 x-21=17-8 x $$

SOLVING EQUATIONS Use division to solve the equation. $$ -4 n=24 $$

Solve the equation. $$ x+9=18 $$

What is the equivalent of \(25^{\circ} \mathrm{C}\) in degrees Fahrenheit? Use the formula \(F=\frac{9}{5} C+32.\) F. \(-4^{\circ} \mathrm{F}\) G. \(13^{\circ} \mathrm{F}\) H. \(46^{\circ} \mathrm{F}\) I. \(77^{\circ} \mathrm{F}\)

Solve the equation. \(5 w+2 w=77\)

Find the unit rate. 440 grams of cereal in 8 servings

Solve the percent problem. 30 grams is 20% of what weight?

Solve the equation. $$ 2(a+4)=2(a-4)+4 a $$

Solve the equation. Round the result to the nearest hundredth. Check the rounded solution. $$ 99=21 t+56 $$

Solve the equation. $$ 4 x+27=3 x+34 $$

Solve the equation. $$ m-20=45 $$

SOLVING EQUATIONS Use division to solve the equation. $$ 8 x=3 $$

Check to see if the given value of the variable is or is not a solution of the inequality. $$ x-8<5 ; x=12 $$

Solve the equation. \(8 n-3 n-4=21\)

Find the unit rate. 20 ounces in 2.5 servings

Solve the percent problem. 90 is 45% of what number?

Solve the equation. $$ 4+5(3-x)=4(8+2 x) $$

Solve the equation. Round the result to the nearest hundredth. Check the rounded solution. $$ -35 m+75=48 $$

Solve the equation. $$ 5 x-4 x=-6 x+3 $$

SOLVING EQUATIONS Use division to solve the equation. $$ 10 x=110 $$

Solve the equation. $$ x-8=-13 $$

Check to see if the given value of the variable is or is not a solution of the inequality. $$ 4+k \geq 32 ; k=30 $$

Solve the equation. \(22 x-12 x=60\)

Solve the percent problem. 3 inches is what percent of 40 inches?

Solve the equation. $$ 5(-x+2)=-3(7 x+2)+8 x $$

Solve the equation. Round the result to the nearest hundredth. Check the rounded solution. $$ -16 x-18=3 $$

Solve the equation. $$ 10 y=2 y-6 y+7 $$

SOLVING EQUATIONS Use division to solve the equation. $$ 30 b=5 $$

Solve the equation. $$ 4+x=7 $$

Check to see if the given value of the variable is or is not a solution of the inequality. $$ 9 a>54 ; a=5 $$

Solve the equation. \(4 c+(-7 c)=9\)

Write the appropriate unit. \(\frac{50 \text { miles }}{1 \text { hour }}\)

Solve the percent problem. \(\$240\) is what percent of \(\$50\)?

Solve the equation. $$ 10(2 x+4)=-(-8-9 x)+3 x $$

Solve the equation. Round the result to the nearest hundredth. Check the rounded solution. $$ 42=23 x-9 $$

Solve the equation. $$ r-2+3 r=6+5 r $$

SOLVING EQUATIONS Use division to solve the equation. $$ -10 x=-9 $$

Solve the equation. $$ x+5=15 $$

Check to see if the given value of the variable is or is not a solution of the inequality. $$ t+17<46 ; t=21 $$

Solve the equation. \(9 t-15 t=-18\)

Write the appropriate unit. $$108 \text { inches } \cdot \frac{1 \text { foot }}{12 \text { inches }}=9 \stackrel{?}{\longrightarrow}$$

Solve the percent problem. 55 years is what percent of 20 years?

Solve the equation. $$ 9(t-4)-2 t=5(t-2) $$

Solve the equation. Round the result to the nearest hundredth. $$ 9.47 x=7.45 x-8.81 $$

Solve the equation. $$ 4+6 x-9 x=3 x $$

SOLVING EQUATIONS Use division to solve the equation. $$ 288=16 u $$

Solve the equation. $$ 11=r-4 $$

Check to see if the given value of the variable is or is not a solution of the inequality. $$ 12 x \leq 70 ; x=6 $$

Solve the equation. \(5(6+j)=45\)