Unit 1 Review 7th grade

Greg uses the equation d=4.5t to determine his distance (d miles) after jogging t miles. Decide if the following statement is true or false.

For each hour, Greg jogs 4.5 miles.

• True

• False

Greg uses the equation d=4.5t to determine his distance (d miles) after jogging t miles. Decide if the following statement is true or false.

The constant of proportionality is 4.5.

• True

• False

Greg uses the equation d=4.5t to determine his distance (d miles) after jogging t miles. Decide if the following statement is true or false.

The equation d=4.5t represents a proportional relationship.

• True

• False

Greg uses the equation d=4.5t to determine his distance (d miles) after jogging t miles. Decide if the following statement is true or false.

For every 4.5 hours, Greg runs 1 mile.

• True

• False

This is a scale drawing of a room. The actual room has a perimeter of 150 ft. If you were to draw a new scale drawing with a scale of 1 unit to 10 ft, would would the perimeter of your drawing be (in units)?

Jane is making punch. She uses 3/4 can of soda for every 12 ounces of pineapple juice. Which equation shows the relationship between cans of soda, s, and ounces of pineapple juice, j?

• 4/3s = j

• 16s = j

• 3/4s=j

• 12s=j

Mr. Shew is buying tickets for students to go to the movies. He spends $600.25 in all. He spends $6.50 on his ticket. and the rest on student tickets. Each student ticket is $4.75. How many student tickets does Mr. Shew buy?

A circular plate has a diameter of 9 inches. What is its area? Use 3.14 for pi. Do not round your answer.

Do you need the radius or diameter to find the area of a circle?

• diameter

• radius

The football team is selling t-shirts as a fundraiser. The graph shows the relationship between shirts sold and money kept. Which of the following are true statements about the graph? Choose ALL correct answers.

• The point (4, 2) means that 4 shirts earned $2.

• The point (2, 1) means that the rate is $2 per t-shirt.

• The point (6, 3) means that 6 shirts sold will earn $3.

• Since the line passes through (1, 0.5), 0.5 is the constant of proportionality.

• The graph is not a proportional relationship.