Homework 5th Grade word problems

Question

Rosie has 10 lbs of flour. If 1/2 cup of flour makes 1 batch of cookies, then how many batches can be made from 10 lbs of flour

Answer 1

3 1/3 cups = 1 lb of flour (you have to find this information elsewhere,

as it's not given in the problem as stated. depending on the type

of flour this number may vary, but 3 1/3 is standard for stardard flour)

1/2 cup makes 1 batch (that's given

10 lbs = 10x 3 1/3 = 100/3

100/3 divided by 1/2 = 200/3 = 66 2/3 batches

10 lbs makes 10 x 3 1/3 x 2 = 200/3

= 66 2/3 batches of cookies with 10 lbs