Area of a rectangle=lenght x width.
width=x
length=x+3
we can suggest this equation:
x(x+3)=40
x²+3x=40
x²+3x-40=0
we solve this square equation:
x=[-3⁺₋√(9+160)] / 2
x=(-3⁺₋13)/2
we have two solutions:
x₁=(-3-13)/2=-8 this solution isn´t valid.
x₂=(-3+13)/2=5
lenght=x+3=5+3=8
Answer: the lenght, in inches, of the rectangle is 8 .
(2) 8
Answer:
i think she reads it 26.5 per hour
Step-by-step explanation: so what i did to get the answer was that i added 240 and 2.5 and for my answer i got 26.5 and i know that is my answer.
hope it help
X=total ounces in pitcher
20%=0.2
1/4=0.25
0.2x+4=0.25x
-0.2x -0.2x
4=0.05x
4/0.05=x
80=x
80 total ounces
Answer:
y^3 + 5y + 8
Step-by-step explanation:
Collect like terms
4y^3 - 3y^3 + 2y + 2y + y + 4 + 4
= 1y^3 + 5y + 8 OR y^3 + 5y + 8
We have been given that the surface area of the earth is approximately 197000000 square miles.
Also the land area of the earth is given by 58000000 square miles.
Therefore, the fraction of the earth surface is land is given by
On simplifying it, we get