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.

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.

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.

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.

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)?

(a)  

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?

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)  

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

(a)  

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

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.