Question

The recommended dietary allowance for calcium for teenage children is 1,300 mg per day.

If a typical 8.0-fl oz glass of reduced-fat milk contains 298 mg of calcium, how many fluid ounces of milk does a teenager need to drink to get the entire recommended amount of calcium from this milk?

a) 4.4 fl oz
b) 1.8 fl oz
c) 35 fl oz
d) 32 fl oz
e) 3.5 fl oz

Answer 1

c) 35 fl oz

Step-by-step explanation:

Hello,

In this case, to compute the recommended amount of calcium that the teenager must drink, one performs the following relationship:

`8.0-fl \ oz -->298mg\\x-->1,300mg`

Solving for
`x`, one gets:

`x=(8.0-fl \ oz *1,300mg)/(298mg) \\x=35-fl \ oz`

Best regards.