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rrrrrrrrr
 one year ago
help math!!!
rrrrrrrrr
 one year ago
help math!!!

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rrrrrrrrr
 one year ago
Best ResponseYou've already chosen the best response.01. Is the equation true, false, or open? 5x + 2 = 6x + 11 (1 point) Open; there is a variable. True; the expressions are the same for all values of the variables. False; the expressions are never the same. 2. Which value is a solution of the equation 5 – 4x = –3? (1 point) 0 2 –3 one fourth 3. Which ordered pair is a solution of the equation y = x – 3? (1 point) (–2, 5) (–5, 2) (2, 5) (5, 2) 4. Which ordered pair is a solution of the equation y = 3x? (1 point) (–2, –9) (–8, –18) (–8, –3) (–10, –30) 5. Which ordered pair is a solution of the equation y = –7x + 2? (1 point) (1, 2) (8, –54) (5, –35) (1, –7) 6. Nick and his cousin Sara have the same birthday, but Nick is eight years older than Sara. Let the variable x represent Nick’s age and y represent Sara’s age. Which graph represents the relationship between Nick’s age and Sara’s age? (1 point) The first quadrant of a coordinate plane titled “Nick’s and Sara’s Ages”. The xaxis is labeled Nick’s Age in years. The yaxis is labeled Sara’s Age in years. The graph shows a line passing through the points (0, 8), (2, 10), (4, 12) and (6, 14). The first quadrant of a coordinate plane titled “Nick’s and Sara’s Ages”. The xaxis is labeled Nick’s Age in years. The yaxis is labeled Sara’s Age in years. The graph shows a line passing through the points (0, 8), (8, 1), and (16, 2). The first quadrant of a coordinate plane titled “Nick’s and Sara’s Ages”. The xaxis is labeled Nick’s Age in years. The yaxis is labeled Sara’s Age in years. The graph shows a line passing through the points (0, 0), (1, 8), and (2, 16). The first quadrant of a coordinate plane titled “Nick’s and Sara’s Ages”. The xaxis is labeled Nick’s Age in years. The yaxis is labeled Sara’s Age in years. The graph shows a line passing through the points (8, 0), (10, 2), (12, 4) and (14, 6). 7. Solve the following equation. –3 = z + 4 (1 point) z = 1 z = –1 z = –7 z = 7 8. Solve the following equation. x – 3 = –5 (1 point) x = negative five over three x = –2 x = –8 x = 15 9. Solve the following equation. 10.5 = 5z (1 point) z = –0.5 z = 15.5 z = 2.1 z = 5 10. Solve the following equation. –3 = x over 5 (1 point) x = Negative nine over four x = –15 x = Negative three over five x = 15 11. Solve the following equation. –7 = eleven over seventeen times z (1 point) z = Negative seventeen over seventy seven z = Negative seventy seven over seventeen z = Negative one hundred nineteen over eleven z = Negative eleven over one hundred nineteen 12. Which equation is an identity? (1 point) 7 – (9x + 3) = –9x – 4 6m – 5 = 7m + 5 – m 10p + 6 – p = 12p – 3(p – 2) 3y + 2 = 3y – 2 13. Which equation has no solution? (1 point) 8 – (5v + 3) = 5v – 5 3m – 6 = 5m + 7 – m 3w + 4 – w = 5w – 2(w – 2) 7y + 9 = 7y – 6 14. Solve the following equation. 5(z – 4) – z = 4z – 20 (1 point) 4 –4 infinitely many solutions no solution 15. Solve the following equation. 4 + 2y = 9 + 2y (1 point) 4 –4 infinitely many solutions no solution 16. Angela and Neil are going to the movies. They each bought a medium popcorn, and Neil got a small soft drink. Angela had a $5 gift certificate to put toward the cost, and Neil paid the rest, which came to $27.90. A movie ticket costs $10, and a medium popcorn costs $5.50. What was the cost for a soft drink? (1 point) $1.90 $7.40 $2.90 $17.40 17. Solve the following equation. 6(z – 2) + 4 = 10 (1 point) z = 2 z = 3 z = –3 z = –4 18. Solve the following equation. 75 = –5(–3 – 4x) (1 point) x = 3 x = –4 x = –3 x = 5 19. Solve the following equation. –4y + 8 = 4(2y – 2) – 2(–16 + 8y) (1 point) y = –4 y = 4 y = –2 y = –6 20. WorkPad Note: Remember to show all of the steps that you use to solve the problem. Be sure to use the text box where the question mark (?) first appears to show your mathematical work. You can use the comments field to explain your work. Your teacher will review each step of your response to ensure you receive proper credit for your answer. Solve the following equation. u + 2 = 4 (2 points) Select attachment Choose Fileor drag and drop a file into this area  20 MB limit 21. Solve the following equation. –5 = s – 3 (2 points) Select attachment Choose Fileor drag and drop a file into this area  20 MB limit 22. Solve the following equation. five over thirteen t = –9 (2 points) Select attachment Choose Fileor drag and drop a file into this area  20 MB limit 23. Solve the following equation. 6 = the product of x plus 2 over three (2 points) Select attachment Choose Fileor drag and drop a file into this area  20 MB limit 24. Solve the following equation. 13 + w over 7 = –18 (2 points) Select attachment Choose Fileor drag and drop a file into this area  20 MB limit Short Answer Note: Your teacher will grade your response to ensure you receive proper credit for your answer. 25. What is an estimate of the solution of the equation 6n + 3 = 2? Use a table. (5 points) 26. Solve the equation. 17 = –13 – 8x (2 points) Select attachment Choose Fileor drag and drop a file into this area  20 MB limit FinishCancel
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