Chapter 7.4, Problem 211E

Everyday Math211. Cooking time Helen bought a 24-pound turkey

for her family's Thanksgiving dinner and wants to know what time to put the turkey in the oven. She wants to allow 20 minutes per pound cooking time.

1. Calculate the length of time needed to roast the turkey by multiplying 24 20 to find the number of minutes and then multiplying the product by

   $\frac{1}{60}$ to convert minutes into hours.

(b) Multiply $24\left(20\frac{1}{60}\right)$ .

(c) Which of the Properties of Real Numbers allows you to multiply $24\left(20\frac{1}{60}\right)$ instead of (24 20) $\frac{1}{60}$