Answer:
4.95 and 2.25
Step-by-step explanation:
x+y=7.2
x-y=2.7
Add equations
x+y + x-y= (2x-y+y)=2x
7.2+2.7=9.9
Therefore 2x=9.9 x=9.9/2=4.95
x=4.95
x+y=7.2
4.95+y=7.2
y=7.2-4.95=2.25
y=2.25
Answer:
n = 1
Step-by-step explanation:
Due to it being compounded semiannually, the total amount after n years should be 2000[1+(.086/2)]^2n = 3178. (A = p(1+r/n)^nt)
Hence, solving this equation:
(1+0.43)^2n = 3178/2000
1.43^2n = 1.589
2n = 2
n = 1
Answer:
is the answer
Step-by-step explanation:
7(5x+9)=12+−1(x+9)(Distribute the Negative Sign)
7(5x+9)=12+−x+−9
(7)(5x)+(7)(9)=12+−x+−9(Distribute)
35x+63=12+−x+−9
35x+63=(−x)+(12+−9)(Combine Like Terms)
35x+63=−x+3
Add x to both sides.
35x+63+x=−x+3+x
36x+63=3
subtract 63 from both sides.
36x+63−63=3−63
36x=−60
Divide both sides by 36.

-5/3 is the answer.
ik this doesnt make any sense but hope this helps
It would be the last answer because as you can see the line goes up for 2 hours and then goes straight for 1 hour than goes up again for 2. -The last option