Problem 211
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. a. Calculate the length of time needed to roast the turkey by multiplying 24\(\cdot 20\) to find the number of minutes and then multiplying the product by \(\frac{1}{60}\) to convert minutes into hours. b. Multiply 24\(\left(20 \cdot \frac{1}{60}\right)\) c. Which of the Properties of Real Numbers allows you to multiply 24\(\left(20 \cdot \frac{1}{60}\right)\) instead of \((24 \cdot 20) \frac{1}{60} ?\)
Problem 212
In your own words, describe the difference between the additive inverse and the multiplicative inverse of a number.
Problem 216
In the following exercises, convert the units. A ribbon is 18 inches long. Convert the length to feet.
Problem 222
In the following exercises, convert the units. Ulises lives 1.5 miles from school. Convert the distance to feet.
Problem 241
In the following exercises, solve and write your answer in mixed units. Judy bought 1 pound 6 ounces of almonds, 2 pounds 3 ounces of walnuts, and 8 ounces of cashews. What was the total weight of the nuts?
Problem 262
In the following exercises, solve and write your answer in mixed units. Matthias is 1.8 meters tall. His son is 89 centimeters tall. How much taller, in centimeters, is Matthias than his son?
Problem 267
In the following exercises, solve and write your answer in mixed units. One glass of orange juice provides 560 milligrams of potassium. Linda drinks one glass of orange juice every morning. How many grams of potassium does Linda get from her orange juice in 30 days?
Problem 297
In the following exercises, convert the celsius temperatures to degrees Fahrenheit. Round to the nearest tenth. $$ 16^{\circ} \mathrm{C} $$
Problem 301
(a) Did you grow up using the U.S. customary or the metric system of measurement? (b) Describe two examples in your life when you had to convert between systems of measurement. (c ) Which system do you think is easier to use? Explain.
Problem 304
In the following exercises, write as the ratio of two integers. $$ 2.9 $$