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# Math problem solving hard for smart?

It takes 1/2 cup of frosting to cover a surface are of 41 square inches. How much frosting would it take to cover the top and the rectangular-shaped cake with the dimensions 9" * 13" * 2"?

* = times

ps : sohw the work

### 5 Answers

- 1 decade agoFavorite Answer
9*3*12= 324 inches cubed

324/41= 7.9 inches

7.9*.5=

3.95 cups of frosting

- Anonymous1 decade ago
Easiest way!

you cannot include area of cake bottom.!!!!!

area of cake top and sides

117+2*26+2*18 = 205

use ratio (41 is to .5 as 205 is to X) like this

41/.5=205/x

x = 2.5 cups

Source(s): Life of mathematics - Anonymous1 decade ago
1.427 cups set up a ratio of cups to area neglect the 2" because height doesent matter it only the TOP

.5/41 = x/ (9*13) solve 4 x

- Anonymous4 years ago
OMG an 8 grader doing this way of difficulty? i'm additionally an 8 grader and omg your instructor is somekinda....what could desire to i say? this is going to quickly explode if i opt to discover the solutions like that puzzle guy

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