question

A model is made of a car. The car is 5 feet long, and the model is 8 inches long. What is the ratio of the length of the car to the length of the model?

answer

5:8.

question

The measure of two complementary angles is in the ratio 1:9. What are the degree measures of the two angles?

answer

9° and 81°.

question

A salsa recipe uses green pepper, onion, and tomato in the extended ratio 2:5:9. How many cups of onion are needed to make 96 cups of salsa?

answer

30.

question

What is the solution to the proportion? 5/9 = m/63

answer

m = 35.

question

Given the proportion a/b = 8/15, which ratio completes the equivalent proportion a/8 = ?

answer

b/15.

question

These polygons are similar but drawn not to scale.What is the value of x?

answer

x = 258.

question

In a diagram of a landscape plan, the scale is 1 cm = 10ft. In the diagram, the trees are 3.3 cm apart. How far apart should the actual trees be planted?

answer

33 ft.

question

In a drawing of the solar system, the scale is 1 mm = 500 km. For a planet with a diameter of 5,000 km, what should be the diameter of the drawing of the planet?

answer

2,500,000 mm.

question

Are the two triangles similar? How do you know?

answer

No.

question

What is the geometric mean of 3 and 7?

answer

?21.

question

What is the geometric mean of 5 and 45?

answer

15.