Answer:
B
Step-by-step explanation:
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Hope this helps!
Pretend the equation was 2x - 4 > 8
The first step (of the two) would be to add 4 to the (-4) and to the other side of the equation (+4) to the 8, first. (You wouldn't use the number with variable in the first step) Then you would rewrite the equation: 2x > 12 (it's now 12 because you added the 4 to the 8). The second step is to divide 2x by 2x and do the same with 12. By dividing both sides with the coefficient, will help find "x". 12/2 is 6, therefore x > 6. (the last step would be to graph the expression if needed to)
Answer:
2l + 2w = 96 ..... eqn1
lw = 504 ...... eqn2
Step-by-step explanation:
To model this case where we have two unknowns l and w, we need two equations.
Firstly, the perimeter of a rectangle is given by
2l + 2w = p
Where l,w and p are length, width and perimeter of the rectangle respectively.
Hence,
2l + 2w = 96 ... eqn1
Secondly, the area of a rectangle is given by
Length × width = Area
Hence,
l × w = 504
lw = 504 ... eqn2
With these two equations the solutions to the length and width of the rectangular pool can be derived.
Answer:
Step-by-step explanation:
$2400 in labor
Answer:
18 times the first equation and 8 times the second equation
Step-by-step explanation:
we have
------> first equation
------> second equation
step 1
Multiply the second equation by 8 both sides to remove the fraction in the variable y
step 2
Multiply the first equation by 18 both sides to obtain the coefficient -3 in the variable y


step 3
Adds the new equation 1 and equation 2

The y-term is eliminated
therefore
The answer is
18 times the first equation and 8 times the second equation