If you simplify the equation by adding the like terms, you get 3n+6=42
Then you can subtract 6 from each side
3n=36
Divide each side by 3
n=12
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Answer:
5
Step-by-step explanation:
i anserwed it on the test
Answer: The price of 1 football = $ 7 and price of 1 basket ball= $10
Step-by-step explanation:
Let x = price of 1 football.
y = price of 1 basketball.
As per given,
Multiply 3 to (ii) , we get
Eliminate (i) from (iii)
Put this in (ii), we get
Hence, the price of 1 football = $ 7 and price of 1 basket ball= $10
Answer:
The green box is -3
Step-by-step explanation:
You are reading from a graph, so it is more important perhaps, to pick clear points rather than easy to handle points.
The easiest two points you could use would be
(0,4)
(1, 1)
Slope
m = (y2 - y1)/(x2 - x1)
y2 = 4
y1 = 1
x2 = 0
x1 = 1
m = (4-1)/(0 -1)
m = 3/-1 = - 3
Y intercept
b = 4 from the point 0,4
Line
y = - 3x + 4
