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

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  • 1 decade ago
    Favorite Answer

    9*3*12= 324 inches cubed

    324/41= 7.9 inches

    7.9*.5=

    3.95 cups of frosting

  • Anonymous
    1 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
  • Anonymous
    1 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

  • Anonymous
    4 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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  • 1 decade ago

    We're not here to do your homework for you.

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