Answer:
L = 13 m W = 11 m
Step-by-step explanation:
L = W + 2
area = L x W
143 = (W+2) * W
143 = W^2 + 2w
W^2 + 2W - 143 = 0
Use Quadratic Formula (a = 1 b = 2 c = - 143)
to find W = 11 m then L = 13
Answer:
It will cost $65.
Step-by-step explanation:
A dozen is 12. To find how much it will cost, we can divide the bouquet by 12.
39 ÷ 12 = 3 r3
with the remainder, we can
12 ÷ 3 = 4
3 is 1/4 of 12.
So we can multiply the price of bouquet by 1/2 to find the remainder's price. The whole equation would look like this:
(3x20) + (1/4 x 12)
60 + (1/4 x 20)
60 + 5
65
The answer is 65.
We have been given that Maria put trim around a banner that is the shape of a triangle. Each side is 21 inches long.
The amount of trim will be equal to perimeter of triangle. The perimeter of given triangle will be 3 times each side length that is
inches.
Now we need to convert 63 inches into feet.
12 inches = 1 feet
63 inches =
feet = 5.25 feet.
We are also told that Maria has
foot of trim left, so total length of trim would be trim used plus trim left that is
feet.
Since we need to find length of trim in yards, so we will convert 6 feet into yards.
3 feet = 1 yard
6 feet =
yards = 2 yards
Therefore, the length of the trim was 2 yards.
Answer:
I'm gonna go with the first choice because it's rational.
Step-by-step explanation:
Step-by-step explanation:
solve for x
![5x + 35 + 2x - 15 = 90 \\ 7x + 20 = 90 \\ 7x = 70 \\ x = 10](https://tex.z-dn.net/?f=5x%20%2B%2035%20%2B%202x%20-%2015%20%3D%2090%20%5C%5C%207x%20%2B%2020%20%3D%2090%20%5C%5C%207x%20%3D%2070%20%5C%5C%20x%20%3D%2010)
For y
![y = 180 - 65 \\ y = 115](https://tex.z-dn.net/?f=y%20%3D%20180%20-%2065%20%20%5C%5C%20y%20%3D%20115)
For z
![5z - 18 = z + 22 \\ 4z = 40 \\ z = 10](https://tex.z-dn.net/?f=5z%20-%2018%20%3D%20z%20%2B%2022%20%5C%5C%204z%20%3D%2040%20%5C%5C%20z%20%3D%2010)