i need the answer i need help plz give the answear and the work hot to do it plz
Answer: 1.5
Step-by-step explanation:
=7-4/6-4
=3/2
=1.5
Let one piece of the rope be x
Let the other piece of rope be x + 5
These two pieces put together will make 20 feet.
So we say:
x + (x +5) = 20
What is x? We expand the equation.
x + x + 5 = 20
x + x = 20 - 5
2x = 15
x = 7.5
The shorter piece is therefore 7.5 feet.
The longer piece is 7.5 + 5 = 12.5 feet.
Answer:
-20x^4y + 40x^3y^2.
Step-by-step explanation:
-5x^3y(4x-8y)
= -5x^3y * 4x + -5x^3y * -8y
= -20x^4y + 40x^3y^2
<span>12 = -4(-6x - 3) + 2x
Distribute the -4 on the right side.
12 = 24x + 12 + 2x
Combine like terms on the right side.
12 = 26x + 12
Subtract 12 from both sides.
0 = 26x
Divide both sides by 26
0 = x
Switch sides.
x = 0
There is one solution.
</span>