It would be doubled i think actually no just do the same equation with 4. i need to see the question first
2(x+4x)-4=4(x-3)+2(x+10)
2x+8x-4=4x-9+2x+20
10x-4=6x+11
10x=6x+15
4x=15
x=3.75
Answer:
5
Step-by-step explanation:
You can rewrite this expression as 1800 x (1/1.2)^t
Now you just simplify
= 1800(10/12)^t
= 1800 (5/6)^t
So B is your answer!
Answer:
Yes, the constant of proportionality is the same for the three rows.
The relationship between amount of water (W) in terms of time (t) can be written as:
W = 16.5 t
Step-by-step explanation:
To find the constant of proportionality, find the number of gallons per minute for each row:
First row: 16.5 gal in 1 minute means: 16.5 Gal/min
Second row: 24.75 gallons in 1.5 minutes means 24.75/1.5 = 16.6 Gal/min (same proportionality as above)
Third row: 33 gallons in 2 minutes means: 33/2 = 16.5 Gal/min (again same proportionality)
Then: Yes, the constant of proportionality is the same for the three rows.
Therefore the amount (W) of water in gallons per time (t) in minutes can be written as the product of 16.5 times time (t):
W = 16.5 t
