Question

A baker uses 5.5 pounds of flour daily.

a. How many ounces of flour will he use in two weeks? Use words, numbers, or pictures to explain your thinking. (1 lb = 16 oz)
b. The baker’s recipe for a loaf of bread calls for 12 ounces of flour. If he uses all of his flour to make loaves of bread, how many full loaves can he bake in two weeks?
c. The baker sends all his bread to one store. If he can pack up to 15 loaves of bread in a box for shipping, what is the minimum number of boxes required to ship all the loaves baked in two weeks? Explain your reasoning.
d. The baker pays $0.80 per pound for sugar and $1.25 per pound for butter. Write an expression that shows how much the baker will spend if he buys 6 pounds of butter and 20 pounds of sugar.
e. Chocolate sprinkles cost as much per pound as sugar. Find 1/10 the baker’s total cost for 100 pounds of chocolate sprinkles. Explain the number of zeros and the placement of the decimal in your answer using a place value chart.

Answer 1

Explanation:

a). A baker uses 5.5 pounds of flour daily.

That means he uses 88 pounds of flour daily.

Therefore, number of ounces of flour used in two week (14 days) = 88×14 = 1232 oz

b). If recipe for a loaf of bread calls for 12 oz of flour

Therefore, in two weeks number of loves baked = 102.67 ≈ 103

c). Baker can ship a pack of 15 loaves of bread in a box.

Therefore, number of boxes =
`\frac{\text{Number of loaves}}{\text{Number of loaves in a box}}`

=
`(103)/(15)`

= 6.84

minimum number of boxes which can be exported will be 6.

d). The baker pays for sugar = $0.80 per pound

and paid for butter = $1.25 per pound

Then the expression for 6 pounds of butter and 20 pounds of sugar will be

= 0.80(pounds of sugar) + 1.25(pounds of butter)

= 0.80(20) + 1.25(6)

= 16 + 7.5

= $23.5

e). Chocolate sprinkles costs = $0.80 per pound

Total cost for 100 pounds of chocolate sprinkles = 100×0.80 = $80

`(1)/(10)`th of $80 =
`(80)/(10)`

=$8

Place value chart

Thousands Ones Decimals Hundred ten thousand thousands hundred tens ones tenth 00 00

0 0 0 0 0 8 0 0 0