Direct & Inverse

HyVee found that the demand for Coke products varies inversely as the price of the product. When the price of a Coke product is $2.75, the weekly demand is 1250. Find the weekly demand if the price is raised to $4.00.

• 859.4

• 1818.2

• 1604.4

• 723.5

Determine the type of variation.

• Direct

• Inverse

• None

If m varies directly as p, and m = 35 when p = 5, find m when p is 6.

• 42

• 36

• 25

• 49

If x varies inversely as v, and x = 35 when v = 3, find x when v = 15.

• 7

• 9

• 5

• 21

The frequency of a vibrating string varies inversely as its length. A string 3 feet long vibrates 175 cycles per

second. Find the frequency of a 5 foot string.

• 105 cycles

• 291.7 cycles

• 2625 cycles

• 332 cycles

The time required to process a shipment of goods at Wal-Mart varies directly with the number of items in the

shipment and inversely with the number of workers assigned. If 15,000 items can be processed by 8 workers in 10 hours, then how long would it take 12 workers to process 20,000 items?

• 6.5 hours

• 7.75 hours

• 8.9 hours

• 10.2 hours

The graph represents which type of variation?

• Direct

• Inverse

• Neither

Tags

CCSS.HSF-IF.C.7A

The time required to complete a job varies inversely as the number of people working. If it took 4 hours for 7 construction workers to pave a road, how long would it have taken 3 construction workers to have done the same job?

• 5 hours

  15 minutes

• 7 hours

  30 minutes

• 9 hours

  20 minutes

• 11 hours

  10 minutes

• Direct

• Inverse

• Neither

• Direct

• Inverse

• Neither