Ramil amd carly decided to make more baked goods for the bake sale. they used 1/7 lb less flour to make bread than to make cookies. she used 1/5 lb more to make cookies than to make brownies. if she used 1/2 lb of flour to make the bread, how much flour did she use to make the brownies

Step-by-step explanation:

Given:

They used 1/2 lb flour to make the bread.

They used 1/7 lb less flour to make bread than to make cookies

So they used flour to make the cookies =

=

=

Therefore they used flour to make the cookies.

She used 1/5 lb more to make cookies than to make brownies.

So they used cookies to make the brownies =

=

=

=

Therefore they used flour to make the brownies.

if the eqn of the parabola is f(x) = (x-4)(x+2), we need to mult. this out to find the coordinates of the vertex.

then f(x) = x^2 + 2x - 4x - 8, and f(x) = x^2 - 2x - 8.

one way in which you can find the vertex is to calculate x = -b / (2a).   here, that comes to

        )

x = = 1.   f(1) = 1^2 - 2(1) - 8 = - 9.   vertex is at (1, -9).

        2(1) 

find another point on the curve:   let x=0, for which y=-8.   then (0, -8) is on the curve.   plot the vertex and this point and draw a smooth parabola thru both.

hope this