Question

In 3/4 cup of oatmeal, that is 1/10 of the recommended daily value of iron. What faction of the daily recommended value of iron is in 1 cup of oatmeal?

Answer 1

recommended value of iron is
`(2)/(15)`

Explanation:

In 3/4 cup of oatmeal, that is 1/10 of the recommended daily value of iron

The ratio of cup of oatmeal to the value of iron is

`((3)/(4))/((1)/(10) ) =(30)/(4)`

Let x be the recommended value of iron for 1 cup of oatmeal

Make a proportion

`(oatmeal)/(value) =(oatmeal)/(value)`

`(30)/(4) =(1)/(x)`

cross multiply

`30x=4`

`x=(4)/(30)`

`x=(2)/(15)`

recommended value of iron is 2/15