Pearson eText for Mathematics for Elementary Teachers with Activities -- Instant Access (Pearson+)
5th Edition
ISBN: 9780137442812
Author: Sybilla Beckmann
Publisher: PEARSON+
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Textbook Question
Chapter 6.6, Problem 11P
Light travels at a speed of about 300,000 kilometers per second. The distance that light travels in 1 year is called a light year. The star Alpha Centauri is 4.34 light years from earth. How many years would it take a rocket traveling at 6000 kilometers per hour to reach Alpha Centauri? Solve this problem, and explain how you use the meanings of multiplication and division in solving it.
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Theorem 7.6 (Etemadi's inequality)
Let X1, X2,
X, be independent random variables. Then, for all x > 0,
P(max |S|>3x) ≤3 max P(S| > x).
Isk≤n
Theorem 7.2 Suppose that E X = 0 for all k, that Var X = 0} x) ≤ 2P(S>x
1≤k≤n
S√2),
-S√2).
P(max Sk>x) ≤ 2P(|S|>x-
1
a)
[1√2-31x+1√3-11y = x (1 - √2) + √34
LI√2-21x-1√3-3/4= √34 -
√2x-4
Chapter 6 Solutions
Pearson eText for Mathematics for Elementary Teachers with Activities -- Instant Access (Pearson+)
Ch. 6.1 - For each of the following word problems, write the...Ch. 6.1 - Write two word problems for 637?, one for each of...Ch. 6.1 - a. Write an array problem for 213=? and make a...Ch. 6.1 - a. Write a multiplicative comparison problem for...Ch. 6.1 - a. Is 05 defined or not? Write a word problem for...Ch. 6.1 - a. Is 03 defined or not? Explain your reasoning....Ch. 6.1 - Write and solve one word problem for 3570=? and...Ch. 6.1 - a.Use the definition of powers of 10 to show how...Ch. 6.2 - Use the definition of fractions and...Ch. 6.2 - Using our definition of fractions, the idea of...
Ch. 6.2 - a. Explain why 115=.11using...Ch. 6.2 - Describe how to get the mixed number answer to 235...Ch. 6.2 - a. Write a simple how-many-units-in-1 -group word...Ch. 6.2 - Write and solve four different word problems for...Ch. 6.2 - For each of the problems that follow, write the...Ch. 6.2 - Explain how to solve the next problems with...Ch. 6.2 - In your own words, describe a procedure for...Ch. 6.2 - * Halloween (October 31) of 2014 was on a Friday,...Ch. 6.2 - Must there be at least one Friday the 13th in...Ch. 6.2 - Presidents' Day is the third Monday in February....Ch. 6.2 - I'm thinking of a number. When you divide it by 2,...Ch. 6.2 - I'm thinking of a number. When you divide it by...Ch. 6.2 - Three robbers have just acquired a large pile of...Ch. 6.2 - A year that is not a leap year has 365 days. (Leap...Ch. 6.3 - a. Calculate 42156 and 62,63532 in two ways: with...Ch. 6.3 - a. Use the scaffold method to calculate 7934. b....Ch. 6.3 - a. Use the common method for implementing the...Ch. 6.3 - a. Use the common method for implementing the...Ch. 6.3 - Tamarin calculates 83425 in the following way: I...Ch. 6.3 - Felicia is working on the following problem: There...Ch. 6.3 - Rodrigo calculates 65015 in the following way: 150...Ch. 6.3 - Meili calculates 120045 in the following way:...Ch. 6.3 - Calculate 6238 without using a calculator or any...Ch. 6.3 - Calculate 200075 without using a calculator or any...Ch. 6.3 - Use some or all of the multiplication facts...Ch. 6.3 - Use the two multiplication facts, 3012=360 and...Ch. 6.3 - how the whole-number-with-remainder and the...Ch. 6.3 - Show how to use division to determine the decimal...Ch. 6.3 - Describe how to use either dimes and pennies or a...Ch. 6.3 - Describe how to use either dimes and pennies or a...Ch. 6.3 - a. Use the standard division algorithm to...Ch. 6.3 - Describe how to use either dimes and pennies or a...Ch. 6.3 - a. Use division to determine the decimal...Ch. 6.3 - Jessica calculates that 73=2, remainder 1. When...Ch. 6.3 - a. Write and solve a simple word problem for...Ch. 6.3 - a. Suppose you want to estimate 45938 By rounding...Ch. 6.3 - Bob wants to estimate 1893275. He decides to round...Ch. 6.3 - * A student calculates 69987 as follows, and...Ch. 6.3 - When you divide whole numbers using an ordinary...Ch. 6.4 - Explain how to use the math drawings of Figures...Ch. 6.4 - A Bread Problem: If 1 loaf of bread requires 114...Ch. 6.4 - A Measuring Problem: You are making a recipe that...Ch. 6.4 - wWrite a how-many-groups word problem for 423=?...Ch. 6.4 - Write a how-many-groups word problem for 514134=?...Ch. 6.4 - Jose and Mark are making cookies for a bake sale....Ch. 6.4 - Marvin has 11 yards of cloth to make costumes for...Ch. 6.4 - A Laundry Problem: You need 34 cup of laundry...Ch. 6.4 - Write a how-many-groups word problem for 234=? and...Ch. 6.4 - Write a how-many-groups word problem for 1314=?...Ch. 6.4 - Write a how-many-groups word problem for 1223=?...Ch. 6.4 - Write a simple how-many-groups word problem for...Ch. 6.4 - a. By rewriting the division problem 1833911=? as...Ch. 6.4 - Use the fact that we can rewrite the division...Ch. 6.4 - a. Tyrone says that 125 doesn't make sense because...Ch. 6.4 - * Fraction division word problems involve the...Ch. 6.5 - Explain how to use the math drawings of Figures...Ch. 6.5 - Write a how-many-units-in-1-group word problem for...Ch. 6.5 - Write a how-many-units-in-1-group word problem for...Ch. 6.5 - Write a how-many-units-in-1-group word problem for...Ch. 6.5 - Write a how-many-units-in-I-group word problem for...Ch. 6.5 - If 112 cups of a cereal weigh 2 pounds, how much...Ch. 6.5 - It took a mule 23 of an hour to go 45 of a mile....Ch. 6.5 - It took 113 cans of paint to paint 25 of a room....Ch. 6.5 - Write a word problem for 3412=? and another word...Ch. 6.5 - For each of the following problems, determine if...Ch. 6.5 - Sam picked 12 gallon of blueberries. He poured the...Ch. 6.5 - A road crew is building a road. So far, 23 of the...Ch. 6.5 - Will has mowed 23 of his lawn, and so far it has...Ch. 6.5 - Grandma's favorite muffin recipe uses 134 cups of...Ch. 6.5 - Tran write following word problem for 13412?:...Ch. 6.6 - Sue needs to cut a piece of wood 0.4 of an inch...Ch. 6.6 - a. Write a how-many-groups word problem for...Ch. 6.6 - a. Calculate 28.30.07to the hundredths place...Ch. 6.6 - a. Calculate 16.80.35to the hundredths place...Ch. 6.6 - Ramin must calculate 8.423.6 longhand, but he...Ch. 6.6 - a. Make a math drawing like Figure 6.30, and use...Ch. 6.6 - A federal debt problem: If the federal debt is $11...Ch. 6.6 - A tax cut problem: If a 1.3 trillion dollar tax...Ch. 6.6 - Light travels at about 300,000 kilometers per...Ch. 6.6 - A newly discovered star is about 75 trillion...Ch. 6.6 - Light travels at a speed of about 300,000...Ch. 6.6 - Susan has a 5-pound bag of flour and an old recipe...Ch. 6.6 - In ordinary language, the term divide means...Ch. 6.6 - When Mary converted a recipe from metric...Ch. 6.6 - * Suppose you need to know how many...Ch. 6.6 - Sarah is building a carefully crafted cabinet and...
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