Answer:
2. 6/9
3.2/4
4. 8/10
Step-by-step explanation:
basically the idea is to find something in the same fact family so like the example on 1, follow that and try to answer the next problams on your own its really easy
( sorry if im wrong or not i tried to help)
Answer:
10.5 hours.
Step-by-step explanation:
Please consider the complete question.
Working together, two pumps can drain a certain pool in 6 hours. If it takes the older pump 14 hours to drain the pool by itself, how long will it take the newer pump to drain the pool on its own?
Let t represent time taken by newer pump in hours to drain the pool on its own.
So part of pool drained by newer pump in one hour would be .
We have been given that it takes the older pump 14 hours to drain the pool by itself, so part of pool drained by older pump in one hour would be .
Part of pool drained by both pumps working together in one hour would be .
Now, we will equate the sum of part of pool emptied by both pumps with and solve for t as:
Therefore, it will take 10.5 hours for the newer pump to drain the pool on its own.
Answer:
48cm^2
Step-by-step explanation:
We can break the composite figure into two pieces.
We take the bottom rectangle and determine its area
The figure is 10 cm by 2 cm
A = 10*2 = 20cm^2
The height of the vertical rectangle is 9 cm -2 cm = 7 cm
The width is 10 cm - 6 cm = 4 cm
The figure is 7 cm cm by 4 cm
A = 7*4 = 28cm^2
The total area is the sum of the two areas
20 cm^2 + 28 cm^2 = 48 cm^2