One week, Kristi works 3 days for 3 1/2 hours each day. She makes $9 an hour.
A) How many hours did Kristi work in 1 week?
Hours in week = Days x Hours per day
HW = 3 x 3 1/2
3 x 3 1/2 =
3 x 3 = 9
3 x 1/2 = 1 1/2
Kristi worked 10 1/2 hours.
B) How much did she earn in one week?
Weekly$ = (wage x H) x 3
9 x 3 1/2
9 x 3 = 27
9 x 1/2 = 4 1/2
$31.50 x 3 = $92.50
In 1 week Kristi earned $92.50.
In one Earth day Jupiter completes 2 2/5 rotations. How many does it complete in one week?
1 day = 2 2/5 rotations
1 week = 1 day x 7
7 x 2 2/5 =
7 x 2 = 14
7 x 2/5 = 14/5
14/5 = 2 4/5
Answer 16 4/5.
In one week, Jupiter completes 16 4/5 rotations.
A boat is sailing 8 1/2 km/h. If no conditions change, how far will it sail in 1 1/3h?
8 1/2 x 1 1/3=
17/2 x 4/3 = 68/6
= 11 2/6
It will sail 11 2/6 km.
The distance to Grandma's house is 4/5 the distance to Uncle Glen's house. If Uncle Glen is 3 1/2 hours away, how long will it take to get to Grandma's house?
3 1/2 x 4/5 =
7/2 x 4/5 = 28/10
= 14/5
= 2 4/5
It would take 2 and 4/5 or 2 hours and 45 minutes.
It takes 3/5 of a tank of gas to get to work and back each day. How many tanks would it take
to go to work and back for 5 days?
3/5 x 5 =
3/5 x 5/1 = 15/5
= 3
It would take 3 full tanks of gas.
Owen is 2 1/4 times older than Robin. When Robin turns 8, how old will Owen be?
2 1/4 x 8 =
9/4 x 8 = 72/4
= 18
Owen will be 18.
A karate club is testing candidates. If it takes 3 1/4 hours to test 4 candidates, how long will it take to test 3 groups of 4 candidates each?
3 1/4 x 3 =
13/4 x 3/1 = 39/4
= 9 3/4
It will take 9 3/4 hors or 9 hours and 45 minutes to test 12 candidates.
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