69 pages.
276 • 25 = 6900
6900 / 100 = 69
That is your answer.
Answer:
175 mg/day
Step-by-step explanation:
It's a matter of units conversion. The conversion factors all have a value of 1 (the numerator is equal to the denominator), and all are chosen to cancel units you don't want and give units you do want.
The two problems are almost identical: you have to set up a system, and then solve it.
In the first case, let and be, respectively, the number of girls and boys.
We know that (the number of girls in the Spanish Club is four more than twice the number of boys). Also, we know that (there are 61 students in total).
So, we have the system
We can use the first equation to substitute in the second
And then solve for :
For the second problem, let and be the number of pins knocked down by, respectively, Carrie and John. Just like before, we have the system
And you can solve it in the very same way we solved the previous one.
Answer:
A
Step-by-step explanation:
vol of a cylinder = pie* r^2×h
r= 5
h= 9
......vol= 9×5^2 pie= 225pie units ^3