Gr. 7: MM Lesson 100

William and his brother spent $18.75 playing games at the carnival. William played 6 games and his brother played 9 games. Write and solve an equation to find out how much each game cost if each game was the same price.

• $1.25

• $2.50

• $2.75

Use the scale drawing to determine the actual length of each side. The find the area of the room it represents.

• 30

• 20

• 250

Whitney mixes 2 cups of rubbing alcohol with  $\frac{3}{4}$  gallon of water to make window cleaner.  Give the ratio of alcohol to one gallon of water as a unit rate.

 

•  $2\ \frac{2}{3}$  

• 3

•  $1\ \frac{1}{2}$  

Remember, the interior angles of a triangle always add up to 180 degrees. Find the values of a and b.

• a: 55

  b: 35

• a: 55

  b: 90

• a: 45

  b: 35

Maria earns $22 an hour. Next week, she will get a raise of 10% per hour. Estimate how much Maria will earn after the raise for $35 hours of work.

• $2.20

• $847

• $852.80

Use long division to write  $\frac{1}{2}$  as a decimal.

• 0.5

• 0.1

• 0.6

If a spinner has 10 equal sections--1 red, 2 orange, 3 yellow, and 4 green--what is the probability that the spinner will land on green? Express the probabilities as reduced fractions.

• $\frac{2}{5}$

• $\frac{4}{10}$

• $\frac{1}{10}$

Levi played two rounds in the competition. In the science round, he lost 137 points. In the Math round he scored 315 points. What was Levi’s score for two rounds?

• 178

• 452

• -382

Study the table. Are the data proportional.

• Yes

• No