You are making curried vegetables. The recipe you have makes twenty      1½-cup portions. You want to make one hundred 1¾-cup portions.                        What is the RCF?

Child care Serena wants to open a licensed child care center. Her state requires there be no more than 12 children for each teacher. She would like her child care center to serve 40 children. (a) How many teachers will be needed? (b) Why must the answer be a whole number? (c) Why shouldn’t you round the answer the usual way, by choosing the whole number closest to the exact answer?

Paycheck Annie has two jobs. She gets paid $14.04 per hour for tutoring at City College and $8.75 per hour at a coffee shop. Last week she tutored for 8 hours and worked at the coffee shop for 15 hours. How much did she earn? If she had worked all 23 hours as a tutor instead of working both jobs, how much more would she have 1earned?

Everyday Math 17. Child care Serena wants to open a licensed child care center. Her state requires that there be no more than 12 children for each teacher. She would like her child care center to serve 40 children. (a) How many teachers will be needed? (b) Why must the answer be a whole number? (c) Why shouldn't you round the answer the usual way?

Everyday Math 16. Field trip All the 5th graders at Lincoln Elementary School will go on a field trip to the science museum. Counting all the children, teachers, and chaperones, there will be 147 people. Each bus holds 44 people. (a) How many buses will be needed? (b)Why must the answer be a whole number? (c) Why shouldn't you round the answer the usual way?

Buying in Bulk Alicia bought a package of eight peaches for $3.20. Find the cost of each peach.

Weight loss In the first week of a diet program, eight women lost an average of 3 pounds each. What was the total weight change for the eight women?

Cooking Natalia’s pasta recipe calls for 2 pounds of pasta for 1 quart of sauce. How many pounds of pasta should Natalia cook if she has 2.5 quarts of sauce?

Mollie had a 16-ounce cappuccino at her neighborhood coffee shop. The cappuccino had 110 calories. If Mollie walks for one hour, she burns 246 calories. For how many minutes must Mollie walk to burn off the calories in the cappuccino? Explain your reasoning.

Malik stops at the grocery store to buy a bag of diapers and 2 cans of formula. He spends a total of $37. The next week he stops and buys 2 bags of diapers and 5 cans of formula for a total of $87. How much does a bag of diapers cost? How much is one can of formula?