Ratio Proportions Percentage

• The plane flies 562.5 mph

• The plane will fly 2812.5 miles in 5 hours

• The unit rate is 4.8

• The plane flies 2200 miles in 4 hours

Which of the following equations are proportional?​ ​ ​ ​ (a)  

• y=3x

• y=-5x

• y=x+2

• y=x

• y=3x+1

How much flour would you need to make 48 scones

• 8 cups

• 6 cups

• 4 cups

• 12 cups

How many teaspoons of salt are needed for 18 scones?

• 3/4 teaspoon

• 1 1/4 teaspoon

• 1 1/3 teaspoon

• 1 teaspoon

The chart shows the favorite subjects of students at Clarke N. Johnsen Jr. High. What percent of students prefer mathematics?

• 26%

• 15%

• 16%

• 24%

If there are 2350 students in the school, how many prefer literature? Round to the nearest whole number.

(a)  

A dress is on sale for 15% off the regular price of 19.99. What is the sale price?

• $15.99

• $3.00

• $16.99

• $22.99