Mr. Robinson has 20 students in his martial arts class. The ratio of boys to girls is 4:1. How many boys and girls are in Mr. Robinson's class?

a. 15 boys, 5 girls

b. 5 boys, 15 girls

c. 16 boys, 4 girls

d. 4 boys, 16 girls

Which of the following equations is an example of the distributive property?

a. (5) (3) = (3) (5)

b. 5+3 = 3+5

c. (5) (1+2) = (5) (1) + (5) (2)

d. 15=15

Question

Autumn Mclean

Mathematics

29 November, 10:58

Mr. Robinson has 20 students in his martial arts class. The ratio of boys to girls is 4:1. How many boys and girls are in Mr. Robinson's class?

a. 15 boys, 5 girls

b. 5 boys, 15 girls

c. 16 boys, 4 girls

d. 4 boys, 16 girls

Which of the following equations is an example of the distributive property?

a. (5) (3) = (3) (5)

b. 5+3 = 3+5

c. (5) (1+2) = (5) (1) + (5) (2)

d. 15=15

+2

Answers (2)

Know the Answer?

Bennett Parrish · Answer 1

1.4x+x=20

5x=20

x=4 there are 16 girls and 4 boys

2. c

Myla Conrad · Answer 2

1) Ratio - 4:1

thus, 4x + 1x = 20

5x = 20

thus, x = 20/5 = 4

thus, x = 4

and, 4x = 16

Thus, the answer is (C) 16 boys and 4 girls

2) According to distributivity, a (b+c) = ab + ac

Thus, the answer is (C)