Q:

Kam can make 72 cookies in 3 hours at his house, while Madison can make 120 cookies in 4 hours at her house. How long would it take for them to make a total of 200 cookies together

Accepted Solution

A:
Answer:The answer to your question is: 3.7 hoursStep-by-step explanation:Kam can make 72 cookies/ 3 hoursMadison can make 120 cookies/4 hoursTime to make 200 cookies together = ?First, calculate the number of cookies make per hourKam            72 ---------------- 3                    x   ----------------  1 hour   x = 72/3 = 24 cookies/hMadison              120 -------------   4 hours                x ---------------      1 hourx = 120 / 4 = 30 cookiesNow we write and equation where "t" will be time          24t + 30t = 200      and solve it          54t = 200         t = 200/54         t = 3.7 hours