Answer:
0.4
Step-by-step explanation:
so, Katherine can do 0.1 of the job per hour. (if she needs 10 hours for the job, each hour she can do the whole divided by the time, so 1/10, which is 0.1)
if in two hours she and Marina can be done, then Marina will do 1(the whole job)-2/10 (twice as much as she can do in an hour)=0.8 of the job. So if Marina does 0.8 of the job in two hours, each hour she will do half of it: 0.4 - and this is the correct answer
Will x mean <span>forming the plural of many </span>
4 min 30 sec = 4.5 minutes.
Divide 108 by 4.5 to get the UNIT RATE which is per 1 minute.
108/4.5 = 24 pages per min
Part A
The starting amount of water is 95 cubic meters or m^3 for short. This is the y intercept because it handles the starting amount.
Then the pool is filled at a rate of 4 m^3 per minute. This is the slope, i.e. the rate of change. Because this rate of change is constant, we have a linear equation.
We go from y = mx+b to y = 4x+95
Replace x with t to get the answer.
<h3>Answer: 4t + 95</h3>
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Part B
Plug in t = 17 and compute
V(t) = 4t + 95
V(17) = 4*17 + 95
V(17) = 163
<h3>Answer: 163</h3>
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Part C
We go in reverse compared to the previous part.
This time we don't know the t value, but we are given the V(t) value instead.
V(t) = 231
4t+95 = 231
4t = 231-95
4t = 136
t = 136/4
t = 34
<h3>Answer: 34</h3>
For C highest to lowest
4/5, 3/4, 7/10, 1/2
For D
3/4, 17/24, 2/3, 7/12, 1/6
