Direct Variation

Front

The amount of money earned on a job is directly proportional to the number of hours worked. If $70.00 is earned in 5 hours, how much money is earned in 22 hours of work?

Back

$308

Front

In a direct variation, y=39 when x=3. Find the value of y when x=2.

Back

26

Front

Is this a direct variation?
y=2x

Back

yes

Front

Find the unit rate: $3.60 for 3 pounds of apples. How much does it cost for 1 pound of apples?

Back

$1.20 per pound

Front

y varies directly with x, and y is 16 when x is 32. Which equation represents this situation?

Back

y=(1/2)x

Front

y varies directly with x. If y = 20 when x = 4, what is y when x = -2?

Back

-10

Front

y varies directly with x. If y = 12 when x = 2, what is the constant of variation?

Back

k = 6

Front

y varies directly with x. If y = -4 when x = -1, what is the constant of variation?

Back

k = 4

Front

Find the unit rate: $6.20 for 5 pounds of lemons. How much does it cost for 3 pounds of lemons?

Back

$3.72

Front

The amount of money earned on a job is directly proportional to the number of hours worked. If $240 is earned in 16 hours, how much money is earned in a 40-hour work week?

Back

$600