A is the correct answer because it is the only one that shows the angles that add up to 180 degrees on a line since a supplementary angle is on the line and will add up to 180. D would be correct if angles 6,4,and7 were placed together as those angles together wake a line but no, this means A is the correct answer
Answer:
y=-2x+5
Slope: -2
y int. 5
Step-by-step explanation:
Convert to slope intercept form
2y-10=-4x
Add 10 to both sides
2y-10+10=-4x+10
Simplify
Divide both sides by 2
Simplify
y=-2x+5
Slope: -2
y intercept: 5
Let x be Kelly's regular pay
Her pay for the day can be modelled by the equation 8x + 4(x + 10) = 160
Solve for x
8x + 4x + 40 = 160
8x + 4x = 160 - 40
12x = 120
x = 10
Kelly's regular pay per hour is $10
Answer:
60
Step-by-step explanation:
Well if you are looking for the profit margin we need how much is was when she bought it, because it doesn't say, you can't say It's a increase or a decrease, so you could say this is a investment.
But considering you put this under mathematics I assume there is more to this question you forgot to post.
