3 times a # (# isn't specified, so you should use a variable): 3x
result is 5: =5
Put it all together: 3x=5
Answer:
2x * (9 + 5x^2)
Step-by-step explanation:
It is 10 (make proportions and solve for x)
So if 2 people take 9 hours to paint the room and you want to know how long it will take if 3 people were painting first you will have to find the slope, or the rate of change, to do this you have to divide 9/2.
9/2= 4.5
So it take 4.5 hours for one person to paint the room.
Therefore if there where three people painting it would be 3 x 4.5= 13 hours and 30 minutes.
The time it would take to paint the room would increase.
7x - 4 = 31
7x = 31 + 4
7x = 35
x = 35/7
x = 5
4y + 8 = 24
4y = 24 - 8
4y = 16
y = 16/4
y = 4
