Topic Test Answers

Devon made a scale drawing of a triangle. He used a scale factor of to draw the new triangle. How does each side of the new triangle compare to the original?

Liliana wants to determine the height of an enlarged photo that she plans to frame. The original photo was 11 inches wide by 14 inches high. The new photo will be 132 inches wide. What will the new height be? Round to the nearest inch if necessary.

Tara reads at a rate of 15 pages per day. Which table represents this relationship?Table ANumber of DaysNumber of Pages115230345Table BNumber of DaysNumber of Pages151302453Table CNumber of DaysNumber of Pages115225335Table DNumber of DaysNumber of Pages151252353

A recipe uses 3 eggs for every 8 cups of flour. What is the ratio of eggs to flour in the recipe?

What is the value of p in the proportion below?

Consider the reduction of the rectangle. Not drawn to scaleRounded to the nearest tenth, what is the value of x?

The diagram represents the enlargement of a rectangle by using a scale factor of 6. What are the dimensions of the original rectangle?

Sarah drove 40 miles per hour. In 3 hours, Sarah drove 120 miles. Which is a valid proportion to represent this description?

The scale factor of a figure and its enlargement is 6. What is the new length of the enlarged figure if the original length is 3 cm?

The scale factor of a figure and its enlargement is 4. What is the new length of the enlarged figure if the original length is 4.5 cm?

Which is the scale factor proportion for the enlargement shown? Not drawn to scale

A group of 32 players forms 4 volleyball teams. If there are 96 players, how many teams can be formed?

At a pet store, Davina counted 12 parrots out of 20 birds. Which is an equivalent ratio of parrots to birds at the pet store?

Miguel babysits for 3 hours and earns $15. Which represents the unit rate?

On Monday, the Dairy Barn sold 14 waffle cones for every 6 sugar cones. On Tuesday, the Dairy Barn sold 7 waffle cones for every 3 sugar cones. Which proportion can be used to represent the cone sales?

Consider the original triangle and the enlargement. Figures not drawn to scale.What is the length of side A in centimeters?

Which is the scale factor proportion for the reduction shown?

Evelyn wants to enlarge a photo that measures 3 inches by 5 inches. What is the missing measurement, in inches, that Evelyn needs?

If a scale factor of is used to make a reduction, what is the base of the original triangle? Original triangleReduced triangleHeight 3Base 5

A picture is photocopied by using a scale factor of 2. Each side of the photocopy of the picture is