a. Answer x > 117.4 Explanation Given: Ski jump Competitor’s Score Your score 1 117.1 119.5 2 119.8 Calculation: To beat the competitor’s score, the sum of your scores of the two jumps must be greater than that of the competitor. Let x be your score on the second jump. Then, the required inequality is; 119.5 + x > 117.1 + 119.8 119.5 + x > 236.9 x > 117.4 So, to beat the competitor’s score, the score that is earned on second jump must be greater than 117.4 b. To determine who is correct, the coach who says if you score 118.4 points, you beat the competitor or teammate that says you only need 117.5 points. Answer Teammate is correct Explanation From part (a), it is clear that to beat the competitor’s score, the score that is earned on second jump must be greater than 117.4. Since 117.5 > 117.4 , so the teammate is correct that you only need 117.5 points to beat the competitor.

Big Ideas Math A Bridge To Success Algebra 1: Student Edition 2015

1st Edition

ISBN: 9781680331141

Author: HOUGHTON MIFFLIN HARCOURT

Publisher: Houghton Mifflin Harcourt

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Question

Chapter 2.2, Problem 30E

To determine

the score that must be earned on second jump to beat the competitor’s score.

Expert Solution

Answer to Problem 30E

x>117.4

Explanation of Solution

Given:

Ski jump	Competitor’s Score	Your score
1	117.1	119.5
2	119.8

Calculation:

To beat the competitor’s score, the sum of your scores of the two jumps must be greater than that of the competitor.

Let x be your score on the second jump.

Then, the required inequality is;

119.5+x>117.1+119.8119.5+x>236.9x>117.4

So, to beat the competitor’s score, the score that is earned on second jump must be greater than 117.4

To determine

who is correct, the coach who says if you score 118.4 points, you beat the competitor or teammate that says you only need 117.5 points.

Expert Solution

Answer to Problem 30E

Teammate is correct

Explanation of Solution

From part (a), it is clear that to beat the competitor’s score, the score that is earned on second jump must be greater than 117.4.

Since 117.5>117.4 , so the teammate is correct that you only need 117.5 points to beat the competitor.

Chapter 2.2, Problem 29E

Chapter 2.2, Problem 31E

Chapter 2 Solutions

Big Ideas Math A Bridge To Success Algebra 1: Student Edition 2015

Ch. 2.1 - Prob. 1E Ch. 2.1 - Prob. 2E Ch. 2.1 - Prob. 3E Ch. 2.1 - Prob. 4E Ch. 2.1 - Prob. 5E Ch. 2.1 - Prob. 6E Ch. 2.1 - Prob. 7E Ch. 2.1 - Prob. 8E Ch. 2.1 - Prob. 9E Ch. 2.1 - Prob. 10E

Ch. 2.1 - Prob. 11E Ch. 2.1 - Prob. 12E Ch. 2.1 - Prob. 13E Ch. 2.1 - Prob. 14E Ch. 2.1 - Prob. 15E Ch. 2.1 - Prob. 16E Ch. 2.1 - Prob. 17E Ch. 2.1 - Prob. 18E Ch. 2.1 - Prob. 19E Ch. 2.1 - Prob. 20E Ch. 2.1 - Prob. 21E Ch. 2.1 - Prob. 22E Ch. 2.1 - Prob. 23E Ch. 2.1 - Prob. 24E Ch. 2.1 - Prob. 25E Ch. 2.1 - Prob. 26E Ch. 2.1 - Prob. 27E Ch. 2.1 - Prob. 28E Ch. 2.1 - Prob. 29E Ch. 2.1 - Prob. 30E Ch. 2.1 - Prob. 31E Ch. 2.1 - Prob. 32E Ch. 2.1 - Prob. 33E Ch. 2.1 - Prob. 34E Ch. 2.1 - Prob. 35E Ch. 2.1 - Prob. 36E Ch. 2.1 - Prob. 37E Ch. 2.1 - Prob. 38E Ch. 2.1 - Prob. 39E Ch. 2.1 - Prob. 40E Ch. 2.1 - Prob. 41E Ch. 2.1 - Prob. 42E Ch. 2.1 - Prob. 43E Ch. 2.1 - Prob. 44E Ch. 2.1 - Prob. 45E Ch. 2.1 - Prob. 46E Ch. 2.1 - Prob. 47E Ch. 2.1 - Prob. 48E Ch. 2.1 - Prob. 49E Ch. 2.1 - Prob. 50E Ch. 2.1 - Prob. 51E Ch. 2.1 - Prob. 52E Ch. 2.1 - Prob. 53E Ch. 2.1 - Prob. 54E Ch. 2.1 - Prob. 55E Ch. 2.1 - Prob. 56E Ch. 2.1 - Prob. 57E Ch. 2.1 - Prob. 58E Ch. 2.1 - Prob. 59E Ch. 2.1 - Prob. 60E Ch. 2.1 - 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