R = 3S
R + 6 = 2 (S+6)
Substitute the first equation in the second one:
(3S) + 6 = 2 (S + 6)
3S + 6 = 2S + 12
S + 6 = 12
<u>R = 18
</u>S = 6<u>
</u>
Check:
R is 3 times S now.
In 6 years, R will be (18 + 6) = 24, S will be (6 + 6) = 12.
24 = 2 x 12 yay
Answer:
A I think
Step-by-step explanation:
D because if you simpify 6/8 then that will give you 3/4
Answer: 4224 feet cubed
Step-by-step explanation:
Volume for a rectangular tank =LxWxH
22x12x16=4,224
Sub y=0 into 3y=2x+6
3(0)=2x+6
-2x=6
x=-3
Ans is B.
Sub x=0 into -2y=4x+8
-2y=4(0)+8
y= -4
Ans is B.
