Plastic Rods A factory makes rods by cutting plastic pipes that are 5 feet long into 8 rods.
Part A
How long is each rod?
40
feet
You may use the scratchpad to show your work.
Enter your answer as a fraction or a mixed number.
Part B
What is the total length of 13 rods?

Answer

65 feet long

Step-by-step explanation:

15x5 is 65

Step-by-step explanation:

5 feet ÷ 8 = 5/8 of a foot for each rod.

(In inches that would be 5/8 × 12 inches = (5 × 12)/8 inches = 60/8 inches = 15/2 inches = 7 1/2 inches.)

13 rods would be 13 × 5/8 feet = (13 × 5)/8 feet = 65/8 feet = 8 1/8 feet

the revenue of the fitness center, y, is the product of two factors: the number of members and the fee paid by each member. there are 320 members now, but number of members goes down by 10 for each $5 increase in fees, so if x is the number of $5 price increases then members is equal to (320 - 10x). since the fee is currently $45, and the fee increases by $5 for every price bump x, the fee is given by (45 + 5x). so, revenue y is given by y = (320 - 10x)(45 + 5x).