Question

The cost of 2.5 pounds of cheese is $5.60.

PLEASE DO THESE STEPS
A. What is the cost of one pound of cheese? Type your answer in the box.

B. Mrs. Peterson bought 4.75 pounds of cheese. How much money did Mrs. Peterson spend on cheese?
D. How could you find the cost for 5 pounds of cheese without finding the cost per pound? Type your answer in the bo

Answer 1

Explanation:

Given

cost of 2.5 pounds of cheese is $5.60.

To get the cost of one pound, we will use the equality postulate:

2.5 pounds = $5.60

1 pound = $x

cross multiply;

2.5x = 5.60

x = 5.60/2.5

x = $2.24

Hence one pound of cheese will cost $2.24

b) If Mrs. Peterson bought 4.75 pounds of cheese, to get the amount she paid, we will say:

1 pound = $2.24

4.75pounds = y

cross multiply

1*y = 2.24 * 4.75

y = $10.64

Hence the cost of 4.75pounds is $10.64

c) To find the cost of 5 pounds, we can use the fact that 2.5 pounds of cheese cost $5.60;

hence 2.5 pounds = $5.60

5 pounds z

cross multiply

2.5z = 5*5.60

z = 5*5.60/2.5

z = 2*5.60

z = $11.2

Hence the cost of 5 pounds of cheese is $11.2