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Y varies directly as X. When Y is 10, X is 15. Find Y, when X is 32.

a. Can not be determined
b. When X is 32 then Y = 165
c. When X = 32 then Y is; 21 1/3
d. When X is 32 then Y = 5

  • math -

    y = k x
    10 = k (15)
    k = 10/15
    so
    y = 10 x/15
    y = 320/15 = 64/3 = 21 1/3

  • math -

    ?

  • math -

    20celsius= fahrenheit

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