Name: ________________________
Homework
Write an expression for the fraction change and the percent change. The first example has been done for
you.
Context
1b. Li planted a 12
foot tall tree in
her yard. 10
years later it is 18
feet tall.
2b. Pedro had $600
in his savings
account. Five
years later he has
$800.
3b. It used to take
Naya 10 minutes
to walk to school.
Now it takes her
8 minutes.
4b. Mario’s old car
got 20 miles to
the gallon. His
new car gets 24
miles to the
gallon.
5b. The Castro’s old
dishwasher used
12 gallons of
water per load.
Their new
dishwasher uses 8
gallons per load.
6b. A pair of running
shoes was
originally $75,
they are on sale
for $60.
7b. The pair of
running shoes
was originally
$75, they are on
sale for $50.
Fraction Change Expression
1
12 1 + 12
2
!
= 12 !
= 18
Percent Change Expression
12(1) + 12(.5)
= 12(1.5)
= 18