Oak and birch or maple and oak
5-2X=-4x-7
+4x +4x
5+2x=-7
-5 -5
2x=-12
— —
2 2
X=-6
The answer is x=12
y=-x would be a negative slope
y=12 would be a horizontal line because you can put any point on that line and it's y would always be 12 but it's x coordinate can be anything else
x=y is a positive slope
x=12 is a vertical line because you can put any point on that line and it's x coordinate would always be 12 but its y coordinate can be anything else
Answer:
T = $19.50 + $0.25(m - 200)
Step-by-step explanation:
Using the information provided we can create the following equation. This equation subtracts 200 from the total number of minutes and multiplies this by the cost per minute. Then it adds the fixed cost for the initial 200 minutes to get the total of the bill (T).
T = $19.50 + $0.25(m - 200)
Now that we have the equation we can plug-in you total for last month's bill and solve for m to calculate how many minutes you used last month.
$29.50 = $19.50 + $0.25(m - 200) ... distribute 0.25
$29.50 = $19.50 + $0.25m - 50 ... combine like terms
$29.50 = $0.25m - $30.5 ... add 30.5 on both sides
$60 = $0.25m ... divide both sides by 0.25
240 = m
Finally, we can see that you used a total of 240 minutes last month.
Can you make it formatted better i cant understand anything