Y = x - 7
2x + y = 8
2x + (x - 7) = 8
2x + x - 7 = 8
3x - 7 = 8
<u> + 7 + 7</u>
<u>3x</u> = <u>15</u>
3 3
x = 5
y = x - 7
y = 5 - 7
y = -2
(x, y) = (5, -2)
Answer:
I'll explain below, just follow the directions. I can't directly draw it.
Step-by-step explanation:
find the length and the width of a rectangle whose perimeter is 18 ft
2L + 2W = 18
simplify, divide by 2
L + W = 9
L = (9-W)
:
whose area is 20 square feet
L*W = 20
Replace L with (9-W)
W(9-W) = 20
-W^2 + 9W - 20 = 0
Multiply by -1, easier to factor
W^2 - 9W + 20
Factors to
(W-4)(W-5) = 0
Two solutions
W = 4 ft is width, then 5 ft is the Length
and
W = 5 ft is the width, then 4 ft
26,000 divided by four equals 6,500, and if for every four roses there were 5 then you would multiply 6,500 by 5 to get 32,500 snapdragons
Answer:
40points
Step-by-step explanation:
Given data
Let the total points the team scored be x
so that
20% of x= 8 points
let us solve for x
20/100*x= 8
0.2*x= 8
0.2x= 8
Divide both sides by 0.2
x= 8/0.2
x= 40 points
Hence the time scored 40points
