In this problem why is the easiest to substitute.
Just set the equations equal to each other because they both equal y
-x + 4 = 2x - 8
(You want to get all the x's to one side so add x to each side)
4 = 3x - 8
(next add 8 to both sides)
12 = 3x
(lastly divide 3 from both sides)
4 = x
You have got your x so now it is time to find that y just replace x to either of the two equations
y = 2(4) -8 or y = -(4) + 4
y = 8 - 8 y = 0
y = 0
Final Answer: y=0, x=4
Answer:
D) 35 yards for $90.
Step-by-step explanation:
We have been given four options and we are asked to choose the option that represents the best deal.
Let us find the cost of per yard cloth for our given choices.
A. 
Therefore, option A offers $4 per yard of cloth.
B. 
Therefore, option B offers $3 per yard of cloth.
C. 
Therefore, option C offers $2.75 per yard of cloth.
D. 
Therefore, option D offers $2.57 per yard of cloth.
Since price offered by option D is less than other option D is the best deal.
Answer:
D
Step-by-step explanation:
First, compare the tens and ones places.
Bats 1 and 2 are each 27 point something ounces. 27 is less than 28 and 29, so we know the answer is either Bat 1 or 2.
Now let's look at the tenths place. Bat 1 is 27.1 oz, Bat 2 is 27.4. Since 1 is less than 4, we know that Bat 1 weighs the least!
It's A (x+3)(x+3). Once you factor the equation you get the following answer.
Ratio of a length to width=5/2
l:x=5:2
l/x=5/2
l=5/2*x
L=10.5 feet
10.5*2/5=x
4.2 feet is width
