Introduction to solving word problems with algebra - item 30616
question 1 of 7
you pay $3 per square foot for carpeting. which equation can be solved to find the
amount you will pay to cover a triangular section of the floor with a base of 2 yards
and a height of 5 yards?
clear
check
g. 2.5) : 3 = x
g
. 2 . 5)
303
3. g . 2 . 5) = x

i pretty sure it is

-3

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

i would need to see the dot plot : )

attachment?

step-by-step explanation: