Direct variation part 2

. If y varies directly as x and y 8 when x 2, find y when x 6. 2

If p varies directly as r and p = 16 when r = 6, find r when p = 4. 1

What is the 2nd step when solving a variation problem?

If y varies directly as x and y =132 when x= 11, find y when x = 33. 3

If y varies directly as x and y =7 when x = 1.5, find y when x = 4.

SPRINGS: The length S that a spring will stretch varies directly with the weight F that is attached to the spring. If a spring stretches 20 inches with 25 pounds attached, how far will it stretch with 15 pounds attached? 12

Most pets age at a different rate than their human companions. A 3-year old dog is often considered to be 21 in human years. What is the human-year age of a dog that is 6 years old?

A grocery store sells 6 oranges for $2. How much would it cost to buy 10 oranges? Round to the nearest cent if necessary. (cents has 2 numbers after the decimal point)

A charter bus travels 210 miles in 3 1/2 hours. Assuming that the distance traveled is directly proportional to the time traveled, how far will the bus travel in 6 hours?

The weight of an object on Mars varies directly with its weight on Earth. An object that weighs 70 pounds on Mars weighs 210 pounds on Earth. If an object weighs 160 pounds on Earth, how much would it weigh on Mars?