Review - Ratios and Proportions (1-27-21)

There are 224 girls in the sophomore class and 188 boys. What is the ratio of boys to girls in the class?

• $\frac{47}{56}$

• $\frac{56}{47}$

• $\frac{224}{188}$

• $\frac{188}{224}$

Solve the proportion.

 $\frac{x}{84}=\frac{2}{21}$  

Solve the proportion.

 $\frac{45}{27}=\frac{x}{3}$  

Solve the proportion.

 $\frac{n+9}{n}=\frac{8}{4}$  

Solve the proportion.

 $\frac{2}{x+2}=\frac{3}{x-9}$  

Solve the proportion.

 $\frac{a-5}{a-7}=\frac{6}{5}$  

The measures of the angles of a triangle are in the extended ratio 2:3:4. What is the measure of the largest angle?

The perimeter of a rectangle is 280 cm. The ratio of its width to its length is 3:4. What is the width of the rectangle?

• 80

• 60

• 160

• 120

Solve the proportion.

 $\frac{x}{9}=\frac{x-10}{6}$  

Solve the proportion.

 $\frac{n+2}{10}=\frac{n-1}{8}$