Because if let's say you have 400$ for the year, and each book cost 10$. So it would be written as 400-10b since the quantity of books must be multiplied times their cost to calculate whether you are within or outside the budget.
Let's see it...
-x+0+(-x)=0 ???
There is a + before the parenthesis, the sign is the same.
-x+0-x = 0
Since the x have equal sign, we add them to get -2x
We have 2x - 0 = 0
Move the zero to the right, so 2x = 0
Divide both for 2...
x = 0
Substitute 0 to x, so -0+0+(-0) = 0
0 = 0 the statement is true
Answer:
84. What you did is right.
Step-by-step explanation:
A parallellogram's area is b x h. So the equation is 7 x 12=84.
Answer:
g(10) = 21
g(0) = 1
g(10) = 21
g(22) = 45
g(28) = 57
g(16) = 33
Step-by-step explanation:
g(x) = 2x + 1
Then in order to find g(10), replace x over 10
g(10) = 2(10) + 1
g(10) = 20 + 1
g(10) = 21
so g(10) = 21
keep doing this to all of the problems and it should be answered the same way.
The first one (y=5/2x) because if you just multiple 4 and 5 first u get 20 and then you divide it by 2
