Solve.
-y varies directly as x. If y = 187 when x = 17, find y when x = 13.
A)y = 121
B)y = 169
C)y = 289
D)y = 143

Question

Quizplus · Accepted Answer

Using the formula for direct variation, we have:

y = kx

where k is the constant of variation.

To find the value of k, we can use the given values:

y = 187 when x = 17

187 = k(17)

k = 11

Now we can use this value of k to find the value of y when x = 13:

y = 11(13) = 143

Therefore, the answer is D, y = 143. We can use the formula for direct variation:

y = kx

where k is the constant of variation. We can solve for k by plugging in the values given:

187 = k(17)

k = 11

Now we can use this value of k to find y when x = 13:

y = 11(13) = 143

Therefore, the answer is choice D.

Solve. -Y Varies Directly as X. If Y = 187 When