1. A number decreased by 2 is 10. Which algebraic equation represents the facts in the given problem?
A. 10 - 2 = x
B. - 10 = 2
C. - 2 = 10
D. 2x = 10
2. What must be multiplied to both sides of the equation 3n = 15 to obtain the value of n?
A. - 3
B. 3
C. 5
4. 1/3
3. The perimeter of an equilateral triangle is 9 cm. What is the measure of each side?
A. 3 cm
B. 6 cm
C. 9 cm
D. 27 cm
4. The sum of two numbers is 15. The larger number is twice the smaller number. What is the smaller number?
A. 3
B. 5
C. 7
D. 10
5. A number subtracted by 4 is 36. What is the number?
A. 9
B. 32
C. 40
D. 44
6. Which is a possible solution to the solution set {x / x > -3}?
A. - 2
B. - 3
C. - 4
D. - 5
7. Five less than a number is greater than 1. Which is a possible solution to this inequality?
A. 4
B. 5
C. 6
D. 7
8. Three more than twice a number is greater than or equal to 9. What is the solution set?
A. {x / x ≤ 3}
B. {x /x ≤ 6}
C. {x / x ≥ 3}
D. {x / x ≥ 6}
For numbers 9 and 10. Use the problem below.
Ben aims to get an average of at least 17 in his three quizzes. His scores in two previous quizzes are 18 and 15 respectively. 9. How will you write an inequality satisfying the conditions above?
A. (18+15+x)/(3 )≥17
B. (18+15+x)/(3 )≤17
C. 18+15+x ≥17
D. 18+15+x ≤17
10. What is the minimum score Ben should get on the third test to achieve his target?
A. 16
B. 17
C. 18
D. 19
Answers
Answered by
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Answer:
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Answered by
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Answer:
1. C. x- 2 = 10
2. D. 1/3
3. A. 3 cm
4. B. 5
5. C. 40
6. A. - 2
7. D. 7
8. C. {x / x ≥ 3}
9-10. A. (18+15+x)/(3 )≥17
10. B. 17
Step-by-step explanation:
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