Cross Multiplication
Linear Equation
Word Problems
100

x/10=6/4

x=15

100

15/6=y/x

y=15/6x

100

Juan types at a constant rate. He can type 2 full pages in 5 and a half minutes. Write the constant rate, C, fraction.

C=2/5.5
200

10/y=21/5

y=50/21

200

20/8=y/x

y=5/2x

200

Water flows from a faucet at a constant rate. Every 7 minutes 13 gallons of water flows from the faucet. Write the fraction that represents the constant rate, C.

C=13/7
300

2/3=y/9

y=6
300

2/3=y/x

y=2/3x

300

Wesley walks at a constant speed from his house to school 2.3 miles away. It took him 32 minutes to get to school. Solve to find how many miles Wesley walked after 19 minutes. 

y= 1.36 miles

400

10/17=y/2

y=20/17

400

36/8=y/x

y=9/2x

400

Wesley walks at a constant speed from his house to school 1.5 miles away. It took him 25 minutes to get to school. Write a linear equation in two variables that represents how many miles Wesley walks.

y= 1.5/25x

500

1/x=3/2

x=2/3

500

10/20=y/x

y=1/2x

500

Stefanie drove at a constant speed from her apartment to her friend's house 20 miles away. It took her 45 minutes to reach her destination. Write a two variable equations to represent how many miles Stefanie can drive over any time interval.

y= 4/9x