Lila decided to make more baked goods for the bake sale. She used 1/8 lb less flour to make bread than to make cookies. She used 1/4 lb more flour 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? Explain your answer using a diagram, numbers, and words.

3\8 lbs of flour for brownies

Step-by-step explanation:

Bread = 1 /2 lbs flour

cookies uses 1/8 more flour ( she used 1/8 less flour for bread than cookies)

So cookies   will be 1/2 + 1/8  =   4/8 + 1/8 = 5/8 lbs

Brownies  uses less 1/4 less flour than cookies

so 5/8 - 1/4 =  5/8 - 2/8 = 3/8 lbs of flour

Steps   1/2 + 1/8 -1/4 = 3/8

a)

$4,000 + $960 = $4,960

She has $4,960 in her account at the end of 3 years

b)

i = Prt

r = i/Pt

r = 960 / 4000 * 3

r = 960 / 12000

r = 0.08

Annual interest rate is 0.08 or 8%

c) If 1% greater then r = 0.09 (9%)

i = Prt

i = $4,000 * 0.09 * 3

i = $1, 080

The different: $1, 080 - $960 = $120

She would have $120 more in her account if the interest rate were 1% greater.