Five friends are going to share 1/2 of a pizza. How much of a whole pizza will each friend eat? which equation can be used to solve the problem above?
A.5÷1/2=n
B.1\2÷5=n
C. n÷5=1/2
D. n÷1\2=5

A

Step-by-step explanation:

1/2 of a pizza, split up between (divided by) 5 friends = 1/2 ÷ 5

(Each friend will get 1/10 of a pizza)

step-by-step explanation:

compare

a 4/6 = 9/12   not proportional

step-by-step explanation:

to find which are not proportional, we can use cross products

if it is true, they are proportional.   if it is not true, they are not proportional.

a 4/6 = 9/12

4* 12 = 6*9

48 = 54

not this is not proportional  

b 2/3 = 12/18  

2* 18 = 3 * 12

36 = 36

this is proportional

c 5/4 = 10/8  

5*8 = 4*10

40 = 40

this is proportional

d 7/5 = 35/25

7*25 = 5 * 35

175 = 175

is proportional