Question

Drinking 7 fluid ounces of milk provides 236.25 milligrams of calcium. How many fluid ounce of milk are required tho prove 67.5 milligrams of calcium. Round to the nearest tenth

A.1.7 fluid ounces

B.2.0 fluid ounces

C.2.5 fluid ounces

D.2.3 fluid ounces

Answer 1

Option B is correct.

2.0 fluid ounces of milk are required to provide 67.5 milligrams of calcium

Explanation:

Proportion states that the two ratios or fractions are equal.

As per the given statement: Drinking 7 fluid ounces of milk provides 236.25 milligrams of calcium.

Let x be the fluid ounce of milk.

then, by using proportion method we have;

`(7)/(236.25) = (x)/(67.5)` ......[1]

Cross multiply states that an equation of fractions when each side consists of a fraction with a single denominator by multiplying the numerator of each side by the denominator of the other side and then, equating the two products obtained.

Apply cross multiply in [1];

`7 * 67.5 = 236.25 * x`

Simplify:

`472.5 = 236.25x`

Divide 236.25 we get;

`x = (472.5)/(236.25)`

Simplify:

x = 2.0

therefore, 2.0 fluid ounces of milk are required to provide 67.5 milligrams of calcium