Answer:
192in^3
Step-by-step explanation:
Just multiply all of the dimensions: 2in x 8in x 12in ---> 192in^3
Answer:
C
Step-by-step explanation:
It is right
Answer:
x=-7
Step-by-step explanation:
Alrighty. 5x+8=2x-13. Lets do -2x on both sides. We'll get 3x+8=-13. Then lets subtract 8 from both sides. We'll get 3x=-21. Divide by 3 and we'll get x=-7. Hope that makes sense.
Okay so let's first try to get the first equation in the same form as the second with y on one side.
We have 7x-y=10 so we will subtract 7x from both sides and we now have :
-y=-7x+10
Now we can add both equations!
-y=-7x+10
+ y=-7x+2
We end up with 0=-14x+12
subtract 12 from both sides and we have -12=-14x
divide by -14 and we have 12/14=x we can simply that fraction to 6/7.
Now that we know x=6/7, we can plug it into the equations to find y!
7(6/7)-y=10
7(6/7)=6 so we now have 6-y=10
Subtract 6 and we now have -y=4. We want to also divide the negative sign since there's also an invisible one attached to it so the answer is y=-4
Let's plug in 6/7 into the second one to see if we get -4 too!
y=-7(6/7)+2
y=-6+2
y=-4
So there we have it! x=6/7 and y= -4! Sorry i took so long!