Question

Mr. Donahue needs 4 1/2 pounds of flour to make 5 loafs of bread. He bought 50 pound bag of flour that costs $64.99. About how much will Mr. Donahue spend on flour for a loaf of bread?

Answer 1

EXPLANATION

Let's see the facts:

Needed--> 4 1/2 pounds of flour

Number of loafs of bread = 5

Amount --> 50 pound bag

Cost -----> $64.99

Let's turn the mix fraction into an improper one:

`4(1)/(2)=(9)/(2)`

Mr Donahue will spend:

`((9)/(2))/(5)=(9)/(10)=0.9\frac{\text{pounds of flour }}{\text{loaf of bread}}`

He needs 9/10 or 0.9 pounds of flour for a loaf of bread

The cost for 0.9 pounds of flour is (Applying the unitary Method):

`\frac{64.99\text{dollars}}{50\text{pounds}}\cdot0.9\text{pounds}=1.2998\cdot0.9=1.17\frac{dollars}{\text{loaf of bread}}`

Answer: Mr. Donahie will spend 1.17 dollars for a loaf of bread