Question

A pancake recipe calls for 1/7 cup of oil per cup of mix. Owen wants

to use 3 1/2 cups of pancake mix. He has 1/2 cup of oil. Does Owen have

enough oil to make the pancakes? Explain.

Answer 1

Yes, Owen have enough oil to make the pancakes.

Explanation:

Given:

A pancake recipe calls for 1/7 cup of oil per cup of mix.

Owen wants to use 3 1/2 cups of pancake mix. He has 1/2 cup of oil.

Now, to find whether Owen have enough oil to make the pancakes.

So, we use unitary method to solve:

If,
`(1)/(7)` cup of oil is used to make pancake = 1.

So, 1 cup of oil is used to make pancakes
`=(1)/((1)/(7)) = 7.`

Thus,
`(1)/(2)` cup of oil is used to make pancakes =
`7* (1)/(2)`

`=(7)/(2) \\\\=3(1)/(2) .`

Hence, Yes, Owen have enough oil to make the pancakes.