Match each equation or inequality in Column I with the graph of its solution set in Column II. | x | ≠ 7
Ch. 1 - Equations and Inequalities

2장, 문제 7
Solve each problem. Suppose two acid solutions are mixed. One is 26% acid and the other is 34% acid. Which one of the following concentrations cannot possibly be the concentration of the mixture? A. 24% B. 30% C. 31% D. 33%
검증된 단계별 안내1
Understand that when mixing two solutions with different concentrations, the resulting concentration must lie between the two original concentrations. Here, the two solutions are 26% acid and 34% acid.
Recognize that the concentration of the mixture must be between 26% and 34%, inclusive, because mixing cannot produce a concentration lower than the smallest or higher than the largest concentration.
Check each given concentration option to see if it falls within the range 26% to 34%. The options are 24%, 30%, 31%, and 33%.
Identify that 24% is less than 26%, so it cannot be the concentration of the mixture since it is outside the possible range.
Conclude that the concentrations 30%, 31%, and 33% are all possible because they lie between 26% and 34%, but 24% is not possible.

비슷한 문제에 대한 검증된 영상 답변:
이 영상 해법은 위 문제에 도움이 된다고 튜터들이 추천한 것입니다.
영상 길이:
6m도움이 되었나요?
주요 개념
질문에 올바르게 답하기 위해 반드시 이해해야 하는 핵심 개념들은 다음과 같습니다.
Mixture Problems and Weighted Averages
Mixture problems involve combining two or more solutions with different concentrations to find the concentration of the resulting mixture. The overall concentration is a weighted average based on the amounts and concentrations of each component. Understanding how to set up and solve these weighted averages is essential for determining possible mixture concentrations.
추천 영상:
가이드 코스
Evaluating Algebraic Expressions
Range of Possible Concentrations
When mixing two solutions, the concentration of the mixture must lie between the concentrations of the individual solutions. This means the mixture concentration cannot be less than the lower concentration or greater than the higher concentration. Recognizing this range helps identify which concentrations are impossible.
추천 영상:
Domain & Range of Transformed Functions
Percent Concentration and Its Interpretation
Percent concentration represents the amount of acid per total solution, expressed as a percentage. Understanding how to interpret and compare these percentages is crucial for solving problems involving solution mixtures, as it allows for meaningful comparisons and calculations.
추천 영상:
Probability of Non-Mutually Exclusive Events Example
관련 실천
교과서 질문
721
views
교과서 질문
Solve each problem. If x represents the number of pennies in a jar in an applied problem, which of the following equations cannot be a correct equation for finding x? (Hint:Solve the equations and consider the solutions.)
A. 5x+3 =11
B.12x+6 =-4
C.100x =50(x+3)
D. 6(x+4) =x+24
886
views
교과서 질문
Match each equation or inequality in Column I with the graph of its solution set in Column II. | x | ≤ 7
733
views
교과서 질문
Decide whether each statement is true or false. The equation 5x=4x is an example of a contradiction.
1133
views
교과서 질문
Decide whether each statement is true or false. If false, correct the right side of the equation. i12 = 1
754
views
교과서 질문
Match each equation in Column I with the correct first step for solving it in Column II. √(x+5) = 7
670
views
1
rank
