Download Name: Period: ______ 2.3 Practice Write a proportion involvin

Name: ____________________________________________________________ Period: ____________
2.3 Practice
Write a proportion involving the two variables and solve it to determine each unknown table value.
1. All-Write Pencil factory produces graphite pencils.
Time (seconds)
12
Number of Pencils
Produced
42
18
63
40
2. A bicyclist rides at a constant rate.
Time (hours)
2
Distance Traveled
(miles)
25
5
62.5
112.5
3. A professional jump rope competitor is trying to break the single rope speed record.
Time (seconds)
Number of Jumps
6
14
63
32
144
4. A fishing tackle company produces tackle kits including hooks and sinkers.
Time (seconds)
Number of Jumps
8
5
40
72
45
𝑦
Use the equation for the constant of proportionality, 𝑥  = k, to determine each unknown value.
3
2
5.
k = and y = 15
7.
9.
1
4
6.
k = and y = 5
k = 3 and x = 21
8.
k = 6 and x = 126
k = 6 and y = 2
10.
k = 0.18 and y = 450
7
5