typicalaaliyah
typicalaaliyah typicalaaliyah
  • 18-10-2018
  • Mathematics
contestada

If y is directly proportional to x and when y = 35, x = 140, what is the value of x when y = 70?

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marx0
marx0 marx0
  • 18-10-2018

Answer: 280 = x


Step-by-step explanation: Okay you are using this equation! y = kx But you must rearrange it!

When rearranged you get y/x = k

Plug in x and y!

y/x = k

35/140 = k

0.25 = k

Now find the value of x.

You use this formula now, y/k = x

Plug in k from the last problem and y = 70

y/k = x

70/0.25 = x

280 = x



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