Carter has 60 balloons. 4/12 of the balloons are black, and 3/12 of the balloons are white. The rest of the balloons are red. Which series of calculations shows how many red balloons Carter has?
Accepted Solution
A:
Let
B------------> black balloons W-----------> white balloons R-----------> red balloons
Step 1 calculate the amount of black balloons and white balloons the total of balloons is 60 B=(4/12)*60=20 balloons W=(3/12)*60=15 balloons
Step 2 calculate the amount of red balloons R=60-[B+W]---------> R=60-[20+15] R=60-(35)=25 balloons