Rayna and Samantha :]
6.
a)
3 x 3 1/2 =
3 x 3 = 9
3 x 1/2 = 3/2
= 1 1/2
1 1/2 + 9 = 10 1/2
She worked 10 1/2 hours.
b)
9 (dollars per hour)
10 (hours) 10 x 9 = $90.00
9.00 divided by 2 (half an hour) = 4.50
$90.00 + $4.50 = $94.50
Kristi earned $94.50 that week.
7.
2 2/5 (a day)
2 2/5 x 7 =
2 x 7 = 14
= 14/5
14/5 = 2 4/5
2 x 7 = 14
14 + 2 4/5 = 16 4/5
Jupiter completes 16 4/5 rotations in a week.
8.
8 1/2 x 1 1/3
8 x 2 + 1 = 17/2 1 x 3 + 1 = 4/3
17/2 x 4/3 = 68/6
= 11 2/6
= 11 1/3
In 1 and 1/3 hours the sail boat would've traveled 11 1/3 km/h.
9.
4/5 x 3 1/2 = 8/10 x 6/10
= 3 128/10
= 15 8/10
= 15 4/5
It will take 15 4/5 hours to get to grandpa's.
10.
3/5 x 5 = 15/5
= 3
He used 3L of gas to go to work every 5 days.
11.
2 1/4 x 8 = 9/4 x 8
= 72/4
= 18
Owen will be 18 years old.
12.
3 1/4 x 13/4 x 4 x 3 = 156/4
= 39
The club will need 39 hours of the gym in order to process the 3 groups of 4 candidates.
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