Thursday 8 December 2016

VARIATIONS 1


x is directly proportional to y. x=12 while y=4. Find y when x is 60.

Solution

x y

x = ky

12 = k x 4

12 = 4k
4      4

k = 3
,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,

k = 3, y= ? x = 60.

60 = 3 x y
60 = 3y
3      3

y = 20.

TRY THIS…………….


x is directly proportional to y. x=20 while y=4. Find y when x is 70.

1 comment:

  1. Variations are sometimes challenging but we can always share ideas and here it is simplified for you.

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