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3 years ago

11

Suppose y varies directly with X, and Y =22 when x = 8 what is the value of y when x= 10

2 answers:

xz_007 [3.2K]3 years ago

8 0

Use K=y/x

K=22/x

K=22/8

then simplify

K=11/4

mars1129 [50]3 years ago

7 0

27.5

22= K(8)

Divide 8 on both sides to get your K value

2.75 = K

Plug your K value into the other equation

Y= 2.75(10)

Solve to get Y

Y= 27.5 When the problem asks "vary directly", it is saying that you are multiplying your K value with your X value(K*X). If the problem is asks "vary indirectly", it is saying that you are dividing your K value by your X value (K/X)

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