#1. 9/5 is correct, but 9/5 = 1 4/5
#2. ok
#3. distance = speed * time
(10 1/6) * (2 1/4) = 61/6 * 9/4 = 183/8
#4. ok
#5. ok
#6. ok
1. Bella's recipe for a batch of cookies calls for 4 1/2 cups of flour. if she wants to make 2/5 of a batch of cookies how much flour should she use?
2/5 * (4 1/2)
= 2/5 * 9/2
= 9/5
= 1 1/5 cups flour
2. A submarine is at an elevation of - 9 4/7 meters. It then descends another 63 1/3 meters. What is the submarines new elevation?
(-9 4/7) - (63 1/3)
= (-9 12/21) - (63 7/21)
= -72 19/21 meters
3. Ann rides her bike at a pace of 10 1/6 miles per hour. If she rode her bike for 2 1/4 hours, how many miles did she ride?
(10 1/6) / (2 1/4)
= (61/6) / (9/4)
= 61/6 * 4/9
=122/27
= 4 4/27 miles
4. Evaluate (3 1/2) /(-1 1/4)
= (7/2) / (-5/4)
= (7/2) * (-4/5)
= -14/5
= -2 1/7
5. Maria is running on a track that is 3/7 of a mile long. So far she has run 1/5 of the way around the track. How far has she run so far?
(3/7) *(1/5)
= 3/35 of mile?
6. Max is training for a marathon. He ran 11.9 miles away from his home. then he ran 6.8 towards his home. Finally, he ran 2.4 miles away form his home. How far is Max from his home?
11.9 - 6.8 = 5.1
5.1 + 2.4 = 7.5 miles away
1 answer
1 answer