9. Make Sense and Persevere Beth, Manuel, and Petra
are collecting sponsors for a walk-a-thon. The equation
20x represents the amount of money Beth raises
WALK-A-THON WVARE RUN OI
SPONSOR SHEET
for walking x miles. The table shows the relationship
NAME
between the number of miles Manuel walks and the
Manuel
CWNS
amount of money he will raise. Petra will earn $15 for
MILES WALKED
each mile that she walks.
3
MONEY RAISED
$45
a. In order to compare the proportional relationships,
5
$75
what quantities should you use to find the unit rate?
7
9
$105
$135
b. Compare the amount of money raised per mile by the three people.