Answer:
18 Minutes
Step-by-step explanation:
Simon and sophie each do a fraction of the job per minute like this:
-Simon does per minute (if we multiply this by 30 we have the completed job)
-Sophie does of the job per minute (again if we multiply this by 45 we have the completed job)
We will add this two to know how much of the job they do together in a minute:
They will do of the job per minute.
So the total time will be when they do , we can put this in one equation like this:
where x is the total times we need to do of the job to complete it. We solve for x:
It is reasonable. Since 255,113 is closer to 300,000 than 200,000 on the number line, you can round the number to 300,000.
Answer:
4/5
Step-by-step explanation:
Answer:
D
Step-by-step explanation:
The "Let something else figure this out answer" should be attempted with a graph. Start with the graph of f(x) = (x)^(1/3)
When you have that, you know that the graph has been shift right 1 unit which means that you are after g(x) = (x - 1)^(1/3) which means that only B or D can be correct, but which is it. The difference between the two is the minus sign. Is it g(x) = (x - 1)^(1/3) or is it g(x) = -(x - 1)^(1/3)? It turns out that it is g(x) = - (x - 1)^(1/3) because that creates a reflection across the x axis.
The graph is a bit confusing because I've chosen to put all three graphs on the same axis, which is not the clearest thing to do. But if you study it carefully you'll see which is the answer.
Red: f(x) = (x)^(1/3)
Blue: g(x) = (x - 1)^(1/3)
green:g(x) = -(x - 1)^(1/3) [ Closest to your given graph]
Answer: Green (D)
The answer you are looking for is M = -18.
To find this answer, you first distribute 9 into the parenthesis (m + 4). Once you've distributed, you should be left with 9m + 36 = 7m. Next, you subtract 9m from both sides. This will give you 36 = -2m. Finally, divide both sides by 2. Thus giving you a final answer of M = -18.
I hope this helps!