Question
Don't show work for multiple choice. 5. After using a 15% off coupon, the price of a sheet cake is $30.94. What was the original
Don't show work for multiple choice.
5. After using a 15% off coupon, the price of a sheet cake is $30.94. What was the original price?
a) $35.58
b) $46.41
c) $26.30
d) $36.40
6. Which is not a solution to 3x - 2y = 8?
a) (0, - 4)
b) (- 2, 1)
c) ( 8/3 , 0)
d) (- 2, - 7)
9. Which one is an equation of a line perpendicular to the line y = 2/5 ? + 11 ?
a) y = 5/2x ? 6
b) y = ? 5/2x + 8
c) y = ? 2/5x + 3
d) y = 2/5x - 7
11. Write the equation of the line through (6, - 2) and parallel to the line x - 3y = 5.
a) y = 1/3x ? 4
b) y = x - 8
c) y = ? 1/3x
d) y = 3x - 20
Show work for these problems 16 through 26.
16. Translate and then simplify the expression: "If x is the smallest of three consecutive integers, write the sum of the two larger consecutive integers"
17. 5(x - 1) - 2(x + 3) = 3(x + 2) - 5
18. Solve using algebra (write a equation and show solving steps). State your answer in sentence form and include any units.
"A 32-ft pipe is cut into two pieces. The larger is 5 ft more than twice the smaller piece. Find the lengths of each piece using algebra."
19. Sketch the line y = 3x - 9, clearly indicating at least 4 points that must include all intercepts.
20. Sketch the line through (- 1, 3) with slope m = ? 1/4 . Clearly label at least 4 points.
21. Find the equation of the line passing through (4, 3) and (- 7, 3). Write the final answer in slope intercept form.
22. Graph the solutions to the inequality x - 2y > 0
25. Write the system of two linear equations that can be used to solve the problem, (DO NOT SOLVE!! JUST WRITE THE SYSTEM OF TWO EQUATIONS AND TWO UNKNOWNS)
"Jamal has 68 coins, all of which are either dimes or quarters. The total value of the coins is $15.35. Find the number of each type of coin using a system of equations."
26. see attached file for problem.
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