Answer:

0.5 represent the original 100% but we want to obtain a 75% aditional so we can find for the value x if interest and we got:

So we need to sell the fries ar 0.875$ if we want to obtain a 75% of margin
Step-by-step explanation:
For this case we know that the french fries cost $0.50 and we want to have a margin of 75% on the fries. So we can use the following proportional rule:

0.5 represent the original 100% but we want to obtain a 75% aditional so we can find for the value x if interest and we got:

So we need to sell the fries ar 0.875$ if we want to obtain a 75% of margin
the correct answer is D 43.20
5(3y)-y=75 -> 15y-y=75 -> 14y= 75 -> y= 75/14
3(75/14)=x -> x= 225/14 and y= 75/14
I'm completely wrong but i tried
Answer:
WOW THIS IS MIDDLE SCHOOL MATH
Step-by-step explanation:
Answer:
390
Step-by-step explanation:
500*.22=110
500-110=390
390