Answer:
x = friends that paid discount price = 8
y = friends that paid regular price = 4
Step-by-step explanation:
Let
x = friends that paid discount price
y = friends that paid regular price
x + y = 12 (1)
6x + 8y = 80 (2)
From (1)
x = 12 - y
Substitute x = 12 - y into (2)
6x + 8y = 80 (2)
6(12 - y) + 8y = 80
72 - 6y + 8y = 80
- 6y + 8y = 80 - 72
2y = 8
y = 8/2
y = 4
Substitute y = 4 into (1)
x + y = 12 (1)
x + 4 = 12
x = 12 - 4
x = 8
x = friends that paid discount price = 8
y = friends that paid regular price = 4
D. f(x)=4 (5/2)^x
Are really good tool for graphing problems is Demos.com
It has 90 degrees so it's right
And none of the sides are equal so it's scalene
Answer:
176
Step-by-step explanation:
Answer:
6g -3g +6g -3g = 5+6-11-3+5-11
6g=-18
6g= -18 /÷6
g= -3
