Answer:
69
Step-by-step explanation:
55+85+58+77=275
275/4=68.75
Rounded=69
The answer is the second one B ( s/6+ 95 3/9)
Answer:
One solution
Step-by-step explanation:
They have isolated y for you in both equations so you can plug either one into the other.
y = 3x - 1
2x + 7 = 3x - 1
isolate the x
7 = x - 1
x = 8
Go back to the original and plug 8 into x to get y.
y = 2 (8) + 7
y = 16 + 7
y = 23
This means at (8, 23) y = 2x+7 is equal to y = 3x-1. In other words they share a point at (8, 23). This is the only solution because for any other x and y they'd not be equal.
-12mn²
i think you just regular multiply the numbers and when you multiply the same variable you add them up
Answer:
85+29x = 250
-85 -85
29x = 290
x = 10
10 weeks
Step-by-step explanation: