Answer:
Step-by-step explanation:
Let the width be w centimeters.
Then the length = w + 7.
The area A is found from the length multiplied by the width.
330 = w(w + 7) = w^2 + 7w.
Now we can rearrange this equation to form a quadratic, as follows:
The factorization of the quadratic is:
(w + 22)(w - 15) = 0
Therefore we find that:
width = 15 centimeters
length = 22 centimeters
The profit is originally 250% to maintain this you need to multiply the new unit cost by 2.5.
New unit cost $1.25. * 2.5 = $3.12.5
Answer:
The length of the triangle is 22.
Step-by-step explanation:
Area = width*length
length = area/width = 198/9 = 22
Answer:
if by % this sign you mean x then
x=9
Step-by-step explanation:
x+3=12
x=12-3
x=9
