Answer Key
Name:
Examining Y=KX
Solve each problem.
A n s w e r s
1) A baker used the equation Y=KX to calculate that he had
made $74.94 after selling 6 boxes of his cookies. How much
$12.49
1.
did he make per box?
2536
2.
2) An industrial printing machine printed 1585 pages in 5
minutes. How much would it have printed in 8 minutes?
$1.83
3.
$4.96
4.
3) A construction contractor used the equation Y=KX to
determine it would cost him $12.81 to buy 7 boxes of nails.
35
5.
How much is each box?
$2.78
6.
4) At the hardware store you can buy 4 boxes of bolts for
$19.84. This can be expressed by the equation Y=KX. How
426
7.
much would it cost for one box?
$36.45
8.
5) Zoe used the equation Y=KX to determine she would need
140 beads to create 4 necklaces. How many beads did she use
$15.35
9.
per necklace?
$28.03
10.
6) An ice cream truck driver used the equation Y=KX to show
how much money he made selling 7 ice cream bars. He
determined he'd make $19.46. How much did he make per bar
sold?
7) To determine how many pages would be need to make 2
books you can use the equation, 142=(71)2. How many pages
would be in 6 books?
8) A movie theater used Y=4.05X to calculate how much money
they made selling buckets of popcorn where Y is the total and
K is the price per bucket. How much would they make if they
sold 9 buckets?
9) Using the equation 9.21=k3 you can calculate how much it
would cost to buy 3 bags of apples. How much would it cost
for 5 bags?
10) A grocery store paid $224.24 for 8 crates of milk. This can be
expressed by the equation Y=KX. How much was it for one
crate?
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Math
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