Mrs. margul paid $125 to have her hair colored and cut if she tips her hairdresser 15% what is her total bill

143.75

Step-by-step explanation:

The tip is the cost times the tip rate

tip = cost * rate

The cost is 125  and the rate is 15%

tip = 125 * 15%

Change this to decimal form

tip = 125 *.15

    = 18.75

The total bill is the cost plus the tip

total bill = cost + tip

             = 125 + 18.75

             = 143.75

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step-by-step explanation:

a drawing really does here:

so i draw the horizontal line y=2 and the vertical line x=-2 at this intersection i put b (this is where my right angle is going to be).   so point b is at (-2,2).   point a is 5 units long and is also on y=2 so this point has to be (3,2) or (-7,2) -doesn't matter i will go with (3,2).

now we know c is at (-2,y) we don't know the y yet bet we know that c is on x=-2.

we have the area of the triangle is .5bh=12.5

we know the base length is 5 (ab)

we have the height is (2-y) if you look at your

plug in

.5(5)(2-y)=12.5

solve for y to get the y-coordinate for c

2.5(2-y)=12.5

divide both sides by 2.5 giving:

2-y=5

now subtract 2 on both sides

-y=3

y=-3

relating to or denoting a system of numbers and arithmetic based on the number ten, tenth parts, and powers of ten.

it alot will look like this 4.4