Answer:
$2.97
Step-by-step explanation:
Start with the given equation.
P1V1=P2V2
To solve for P2, move anything else on that side to the other side so that P2 is alone.
P1V1=P2V2
P2=P1V1/V2
What must be true is the expression will actually be adding 10 + (+ x), because of the two marks you have to make when subtracting by a negative.
The subtraction sign is also the negative sign. So in this case, the expression is also saying -x, which means there is two negative signs.
A double negative is a positive, so in this case the x will be turned to a positive integer.
If this is still too confusing, she can plug in a number to replace x. Let’s try it with -2:
Ex. 10 - (-2)= 12.
The two negative signs turn into one positive sign, AKA an addition sign. So, the above expression can be simplified as 10 + 2, or 12.
Answer:
A
Step-by-step explanation:
its the same but switched around
Answer:
2
Step-by-step explanation:
Fill in the x and y with the values you are trying to find.
-7(2^2 -6)+2(-6)
distribute the -7 and 2 into the parenthesis after squaring the 2.
(-28+42)-12
simplify
14-12
OD) 2
I hope this helps
