Question 183038
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/whole=percent/100}}} 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 



{{{28/32=x/100}}}



{{{0.875=x/100}}} Divide 28 by 32 to get {{{28/32=0.875}}}



{{{0.875(100)=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%