Write the following word phrase as an algebraic expression, using x…
Question Answered step-by-step Write the following word phrase as an algebraic expression, using x… Write the following word phrase as an algebraic expression, using x as a variable. 12 subtracted from a number. 2. Find the value of the following expression if r = 2 and s = – 4 2r + 3s 3. The expression for figuring a student’s average test score is P/T where p is the total points earned on all tests and t is the number of tests. Evaluate the expression when 600 points were earned on 8 tests. 4. A fruit vendor at the local farmer’s market sells apples for $0.77 each and pears for $1.25 each. A customer buys A apples and P pears. Explain what each of the following expressions represents in this context using appropriate units of measure. a. A + P b. 0.77A c. 0.77A + 1.25P d. 40 – (0.77A + 1.25P) 5. Tom makes $250.50 in 5 days. How much does he make in 3 days? Round your answer to the nearest cent. 5. A person who weighs 140 pounds on Earth would weigh 49.6 pounds on Mars. What would a person’s weight be on Mars if she weighs 155 pounds on Earth? Round your answer to the nearest pound. 7. The following picture shows the steps a student took to solve an equation, but they made a mistake. Where did they go wrong? 4x + 12 = 10x – 4 14x = -30 Step 1 14x/14 = -30x/14 Step 2 x = -30/14 Step 3 a. Step 1 x = -15/7 Step 4 b. Step 2c. Step3d.Step 4 8. Use the graph provided to match the letter with the ordered pairs of each point. (-8,3)=____________(2,4)= ____________(-7,1)=___________(3,2)= ____________(-3,-4)= ___________(3,-4)=____________ 9. Indicate whether each ordered pair is or is not a solution of the equation: 2x – y = -4 a. (0,4) b. (4,4) c. (4,0) 10. Graph the line containing the points (-2,4) and (3,1). What is the slope of the line? a. -3/5 b. -5/3 c. 1 d. -1 11. Find the slope of the line that contains the points (5,-5) and (5,2) 12. Sketch the graph of the line y = -6x – 9 What is the slope of this line? What is the y-intercept of this line? 13. Match each equation with the graph that would most closely resemble its graph. The graph for y = – x – 6 is _______________.The graph for y = x + 6is _______________.The graph for y = -x + 6 is _______________.The graph for y = x – 6 is _______________. 14. Body temperature of randomly selected normal and healthy adults are listed below. Compute the mean, median, and mode of the data set. 98.2 98.7 98.8 99.0 98.8 98.3 98.5 98.1 98.8 98.4 15. Obtain the five-number summary for the weekly salaries (in dollars) of 16 government workers: 690 591 813 637 728 571 488 625 521 662 685 467 555 787 517 826 16. The table below gives the religious affiliations of approximately 150,000 first-year college students. Choose the correct pie chart that represents the data in the table. (Continued on next page) Continued from the previous problem Math Algebra MATH MISC Share QuestionEmailCopy link Comments (0)
