Multiplying Fractions
Solve
12 x 1/2
6
1.2 x 3
3.6
Find the Constant of Proportionality (k).
x | 1 | 2 | 3 | 4
y | 3 | 6 | 9 | 12
k = 3
Maria walks 12 miles in 3 hours. How many miles does she walk per hour?
4 miles per hour
The job paid $25 for every 2 hours of work.
Write an equation that represents how much the job pays, y, for x hours of work.
y = 12.5x
Solve
3/4 x 4
3
3.4 x 5
17
Find the Constant of Proportionality (k).
x | 11 | 9 | 4 | 2
y | 77 | 63 | 28 | 14
k = 7
A pump moves 42 gallons in seven minutes. Find the unit rate.
6 gallons per minute
Ms. Pandolfi bought 6 ice cream cakes for $48 dollars.
Write an equation that represents the total cost, y, of x ice cream cakes.
y = 8x
Solve
2/3 x 4/10
4/15
Solve.
2.1 x 0.5
1.05
Find the Constant of Proportionality (k).
x | 5 | 7 | 9 | 12
y | 40 | 56 | 72 | 96
k = 8
You score 84 points in six games. How much do you score per game?
14 points per game
The cost of 3 tickets to the concert is $27.
Find the constant of proportionality and write an equation for the problem.
k = 9
y=9x
Solve
150 x 2/15
20
Solve.
3.5 x 2.5
8.75
Find the Constant of Proportionality (k).
x | 30 | 20 | 5 | 0
y | 15 | 10 | 2.5 | 0
1/2
0.5
A skydiver falls 144 feet in three seconds. How far does the skydiver fall per second?
48 feet per second
Brooke earned $34 for 4 hours of work.
Find the constant of proportionality and write an equation for the problem.
k = 8.5
y=8.5x
Solve
25 x 6/2
75
Solve.
7.3 x 2.3
16.79
Find the Constant of Proportionality (k).
x | 24 | 28 | 12 | 16
y | 6 | 7 | 3 | 4
1/4
.25
One bag of pretzels costs three dollars. Five bags of pretzels costs $10. Which has the lower unit price?
Five bags of pretzels for $10
Ms. Gilder made Halloween cookies for her awesome homeroom. For every 2/3 cup of flour, she made 2 dozen cookies.
Write an equation that represents the cookies, y, for x cups of flour.
y = 1/3x