Hello!
Your questions are quite simple:
A.
Area for rectangle [formula]: A=wl
So your answer is 3×(2x+5)
Explanation:
Since you only have a minimum amount of a number and variable all you have to do is multiply them both in order to get the area, however here we are only asked for an expression so basically, we are leaving out the answer and writing down the multiplication.
B.
3×(2×2+5) = 27
Explanation:
I think the first explanation is very similar to this one, so I think you'll understand it.
Hope this helped!
Answer:
Step-by-step explanation:
Since the sale price is always less than the original, we take the original and subtract from it the percent off to give us the sale price. Putting that into equation form:
s = r - .10r
which says, in words, that the sale price is equal to the regular price minus 10% of the regular price.
Y = kx
Y is the total cost
The number of dvds is x
The cost of each one ($12) is k
y = $12x
Or instead of Y you can but T for total cost
t = $12x
8x-27=3x+58, get all x values on one side and constants on the other 5x=85, now divide both sides by 5. We get the answer of x=17
Answer:
just function A
A is, for every 2x (2 steps) the value of y increased linearly by 2.5
B isn't, for every 10x (10 steps), the increase of y varies