another ratio and proportion problem
they are in propoertion
0.5lb for 1 cake
how many cakes for 3.25lb?
numberofcakes:weight=1/0.5
we want to find how many for 3.25
x/3.25=1/0.5
times both sides by (0.5)(3.25)
0.5x=3.25
divide both sides by 0.5 aka times 2 to both sides
x=6.5
6.5 cakes can be made
b. each lb costs 2.39
easy
total cost=cost per 1 times how many lb
totl cost=2.39 tiesm 3.25
total cost=7.767, rounded
total cost=$7.77
A. 6.5 cakes
B $7.77