Need the graphs to be able to help
The answer should be B if I am correct
<h3><u>
The length is equal to 7.</u></h3><h3><u>
The width is equal to 3.</u></h3>
l = 1 + 2w
2l + 2w = 20
Since we have a value for l, we can plug it into the second equation.
2(1 + 2w) + 2w = 20
Distributive property.
2 + 4w + 2w = 20
Combine like terms.
2 + 6w = 20
Subtract 2 from both sides.
6w = 18
Divide both sides by 6.
w = 3
Now that we have a value of w, we can plug it into the original equation to find the exact value of l.
l = 1 + 2(3)
l = 7
Answer:
5 hours
Step-by-step explanation:
Set up an equation where y=total cost and x= hours
y=7x+15
Substitute 50 for y, the total cost, and solve for x, the total hours
50=7x+15, Subtract 15 from both sides
35=7x, Divide both sides by 7 to get x alone
x=5
Answer:
x= -15
w= -55
Step-by-step explanation:
I am assuming that you have to find "x" and "w."
Substitute the equations for w.
4x+5=3x-10
Subtract 3x from both sides of the equation.
x+5= -10
Now, subtract 5 from both sides of the equation.
x= -15
Plug in -15 for x in one of the equations.
w= 4*-15+5= -60+5= -55