Answer
equation: 2(3x-9) + 2(2x+4)= 60
length: 36 meters
width: 24 meters
Step-by-step explanation:
2(3x-9) + 2(2x+4)= 60
6x-18 + 4x +8 =60
60+18-8= 10x
70=10x
x=7
length- 2(2(7)+4) = 36
width- 2(3(7)-9)= 24
Answer:
We start with this equation:
If x intercept is -4 then y = 0 giving us another point (-4, 0)
(4, -7) and (-4, 0)
slope = y difference / x difference = (-7 -0) / (4 --4) =
-7 / 8
Step-by-step explanation:
Answer:
5)B 6)A 7)C are the answers I believe.
Answer: The system of equations is
40x + 55y = 920
40x + 65y = 1000
x is the cost of the adult ticket; y is the cost of the child ticket
Step-by-step explanation:
If you have to solve this, elimination is a good method.
Subtract the top equation from the second equation.
40x + 65y = 1000
<u>-40x + 55y = 920 </u> x cancels Solve for y
0 + 10y = 80 Divide both sides by 10
y = 8 . Substitute 8 for y in either equation and solve for x
40x + 65(8) = 1000
40x + 520 = 1000 Subtract 520 from both sides
40x = 1000 - 520
40x = 480 Divide both sides by 40
x = 12