7x^2-63x+3x-27=0
Simplify.
7x^2-60x-27=0
To find value of x, 7x+3=0
x-9=0
x1=-3/7
x2=9
Substitute back in equation to find the answer either x1 or x2
The ratio given is
40:80:8
The equivalent ratio is
? : ? : 5
In the first ratio, look at the number in the same position as the 5 in the second ratio and compare it to the other 2 numbers. 80 is 10 times 8, and 40 is 5 times 8. Bring that same ratio down to the equivalent ratio...
5 x 10 = 50
5 x 5 = 25
The equivalent ratio is
25:50:5
PQRS is an isosceles trapezoid and m < Q=127
so m<Q = m<P =127
answer
127
The model helicopter would burn 10.5 ounces of fuel in 7 1/2 minutes. You would first multiply 1.4 (1 2/5 ounces of fuel) by 7 minutes to get 9.8 ounces of fuel. Then, divide 1.4 by 2 to account for the thirty seconds of the flight ( thirty seconds is half of a minute, or 1/2) to get 0.7, add 0.7 by 9.8, and get 10.5 ounces of fuel in the process.
Answer:
Perimeter of rectangle 1=4x+4
Perimeter of rectangle 2=4x+4
Step-by-step explanation:
Two squares with the same dimension
Square 1: let length=x
Square 2: let length=x
Since they have same dimensions
He added two inches to the length of square 1 to make it a rectangle
Rectangle 1: width=x, length=x+2
Perimeter=2(l+w)
=2{(x+2)+x}
=2(x+2+x)
=2(2x+2)
=4x+4
He added two inches to the width of square 2 to make it a rectangle
Rectangle 2: length=x, width=x+2
Perimeter=2(l+w)
=2{(x+(x+2)}
=2(x+x+2)
=2(2x+2)
=4x+4
The two rectangles have equal perimeter
