X + y = 20 Substitute
x by 2 y - 4 in x + y = 20 to obtain 2 y •
4 + y = 20 Solve for y to find y = 8 and
x = 2y - 4 = 12
The answer would be 3.175 kg
Answer:
x = -9/22 or -0.409 to the nearest thousandth.
Step-by-step explanation:
Cross multiplying we get:
(3x + 1)(x - 5) = (3x + 2)(x + 2)
3x^2 - 14x - 5 = 3x^2 +8x + 4
3x^2 - 3x^2 - 14x - 8x = 4 + 5
-22x = 9
x = -9/22
For this case we model the problem as a rectangle.
The area of the rectangle is given by:
A = (w) * (l)
Where,
w: width
l: long
Substituting values we have:
4800 = (w) * ((1 1/3) * w)
We rewrite:
w ^ 2 = 4800 / (1 1/3)
w ^ 2 = 3600
w = root (3600)
w = 60 in
The long will be then:
l = (1 1/3) * w
l = (1 1/3) * (60)
l = 80 in
Answer:
the dimensions of the quilt are:
w = 60 in
l = 80 in
