Using the together rate, it is found that it would take the assistant 31 hours and 30 minutes to do it alone.
<h3>What is the together rate?</h3>
It is the sum of each separate rate.
In this problem, the rates are given as follows:
Hence:
![\frac{1}{9} + \frac{1}{x} = \frac{1}{7}](https://tex.z-dn.net/?f=%5Cfrac%7B1%7D%7B9%7D%20%2B%20%5Cfrac%7B1%7D%7Bx%7D%20%3D%20%5Cfrac%7B1%7D%7B7%7D)
![\frac{x + 9}{9x} = \frac{1}{7}](https://tex.z-dn.net/?f=%5Cfrac%7Bx%20%2B%209%7D%7B9x%7D%20%3D%20%5Cfrac%7B1%7D%7B7%7D)
![9x = 7x + 63](https://tex.z-dn.net/?f=9x%20%3D%207x%20%2B%2063)
2x = 63
x = 31.5.
It would take the assistant 31 hours and 30 minutes to do it alone.
More can be learned about the together rate at brainly.com/question/25159431
Step-by-step explanation:
<h3>t^2(3t-7) -1(3t-7)</h3>
(3t-7) (t^2-1)this is the answer
1 1/2 hours before 12:00 am, which is half an hour before 11:00 pm, which is 10:30 pm
Answer:
1,2,3,4,5,6,7,8,9,10,11,12
Step-by-step explanation:
hehhehe easy
Answer:
16 pi ft^2
Step-by-step explanation:
C = 2 * pi *r
4 pi = 2* pi *r
Divide each side by 2pi
4pi/2pi = 2pi r/2pi
2 = r
We can find the surface area
SA = 4 pi r^2
= 4 * pi * (2)^2
= 16 pi ft^2