Which equation represents the following word problem? Grace is making a cake. The recipe calls for 21∕2 cups of flour. If she has already added 3∕4 of a cup into the bowl, how much more flour will she need to add? Let x be the number of cups she needs to add.
Question 4 options:

A)

3∕4x = 21∕2

B)

x + 3∕4 = 21∕2

C)

X/(3/4)

D)

x – 3∕4 = 21∕2

-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

9x

the first one is x^2+2x+2

the second one is x^2+4

the last one is x^2-4x+8