wileycassidys wileycassidys

26-07-2019
Mathematics

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The variable z is directly proportional to x. When x is 15, z has the value 165. What is the value of z when x = 25?

Respuesta :

kosala1478 kosala1478

26-07-2019

Answer:

z=275

Step-by-step explanation:

it has a ratio 1:11

that must be it

Answer Link

MathPhys MathPhys

26-07-2019

Answer:

275

Step-by-step explanation:

z is directly proportional to x:

z = kx

When x is 15, z is 165.

165 = k × 15

k = 11

When x = 25:

z = 11 × 25

z = 275

Answer Link

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