Question

The cost of 5 pounds of apples is $12.45. What will be the cost of 12 pounds of apples if the

cost varies directly with the number of pounds purchased.
Edit View Insert Format Tools Table

Answer 1

Answer: 29.88

Step-by-step explanation: if 5 pounds = $12.45,

then 12 pounds = x

Therefore, Cross-multiply

5 x = 12 (12.45)

5x=149.4

x=149.4/5

x=29.88

Answer 2

Explanation:

Equation

Cost = k*weight

Givens

weight = 5 pounds

Cost = 12.45

12 pounds

Find k

Cost = k*weight

cost = 12.45

weigh = 5 pounds Substitute these values into the equation

12.45 = k * 5 Divide by 5

12.45 /5 = k*5/5

2.49 = k

Solve for 12 pounds

• k = 2.49
• weight = 12 pounds

Cost = 2.49 * 12

Cost = 29.88

Answer

Cost = 29.88