Answer:
Step-by-step explanation:
2½ hours × 640 miles/hour = 2½×640 miles = 1,600 miles
Answer:
44/80
Step-by-step explanation:
draw a line from 13cm upwards to the graph line and then draw a horizontal line from that point to the y axis to find that you get 18 bananas
then draw a line from 20cm upwardsto the graph line and then draw a horizontal line from that point to the y axis to find that you get 62 bananas
62-18=44 you do this because the shop buys banana lengths between 13 and 20
only from 13 to 20 = 44
so out of 80 (the total) it should be 44/80
Attached below is the problem that I worked out. And I checked my answer simply by plugging it in
Answer: it will take a combined rate of 2.67 hours
Step-by-step explanation:
Father can do the job on the farm in 6 hours. This means that the father's unit rate of working will be 1/6
The older son can do it in 8 hours. This means that the older son's rate of working will be 1/8
The younger son can do same job in 12 hours. This means that the younger son's working rate is 1/12
When they work together, they will be working simultaneously. It means that their unit rates are additive. The combined unit rates will be
1/6 + 1/8 + 1/12 = (20 + 15 + 10)/120
45/120
Assuming it takes t hours for them to complete the work while doing it together. Their combined unit rate will be 1/t
45/120 = 1/t
45t = 120
t = 120/45 = 2.67 hours
