Proportional Reasoning (quiz)~amdm

Name an equivalent ratio for 1/2 with a denominator of 20. a. 10/20 c. 11/20 b. 3/20 d. 1/20

A. 10/20

A hockey player made 9 goals in 12 games. Find the ratio of goals to games. a. 3:4 c. 1:3 b. 4:3 d. 3:1

A. 3:4

At Whitewater Junior High School, there are 360 students and 39 teachers. What is the ratio of students to each teacher rounded to the nearest tenth? a. 1:9.2 c. 120:13 b. 9.2:1 d. 13:120

B. 9.2:1

A basketball player made 36 free throws in 16 games. Find the ratio of free throws to games. a.4:9 c.6:4 b. 9:4 d. 9:5

B. 9:4

Cross-multiplication is helpful in: a. quadratic equations c. linear equations b. solving proportions d. word problems

B. solving proportions

If one term of a proportion is not known, what can be used to find the value of that term? a. substitution c. cross-multiplication b. graphing d. adding all the numbers together

C. cross-multiplication

n/32=1/16 a. n=1/2 c. n=2 b. n=4 d. n=512

C. n=2

n/39=8/13 a. n=32 c. n=24 b. n=2 2/3 d. n=63 3/8

C. n=24

2/n=2/3 a. n=30 c. n=3 b. n=3/4 d. 1 1/3

C. n=3

There are 96 girls in a junior class of 176 students. Find the ratio of girls to boys. a. 11:6 c.6:11 b. 5:6 d. 6:5

D. 6:5