SOLUTION: karen wants to bake a cake. The recipe calls for 2 cups of flour. karen only has 28 tablespoons of flour. What percent of a cake can she bake? Ok so ive figured out that 1 cup

Algebra ->  Proportions  -> Lessons -> SOLUTION: karen wants to bake a cake. The recipe calls for 2 cups of flour. karen only has 28 tablespoons of flour. What percent of a cake can she bake? Ok so ive figured out that 1 cup       Log On


   

Question 183038: karen wants to bake a cake. The recipe calls for 2 cups of flour.
karen only has 28 tablespoons of flour. What percent of a cake can she bake?
Ok so ive figured out that 1 cup has 16 tablespoons
so 2 cups is 32 tablespoons, but since she only has 28, thats where i get confused because i dont know how to find the percentage of the cake she could bake.
please help me
Answer by jim_thompson5910(35256) About Me  (Show Source):
You can put this solution on YOUR website!
You're on the right track. You just need to know the percentage of 28 out of 32.


We can find the percentage using the following proportion:

part%2Fwhole=percent%2F100 where the "part" is smaller than the "whole"


In this case, the "part" is 28 and the "whole" is 32. Let the "percent" be "x" to get


28%2F32=x%2F100


0.875=x%2F100 Divide 28 by 32 to get 28%2F32=0.875


0.875%28100%29=x Multiply both sides by 100 to isolate "x".


87.5=x Multiply 0.875 and 100 to get 87.5


So the answer is x=87.5 which tells us that the percent of the cake that she can bake is 87.5%