Chapter 2 Test Problems even numbers

# Chapter 2 Test Problems even numbers - 18 The perimeter of...

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Solve each equation. 2. - = + 52x 3 x 3 - = + 10x 15 x 3 + = + 15 15 = + 10x x 18 - =- 1 1 = 9x 18 = 99x 182 = x 2 4. + . = x 0 06x 742 . = 1 06x 742 . . = . 1 061 06x 7421 06 = x 700 6. - = 6x 7 0 + = + 7 7 = 6x 7 = 66 76 = x 76 8. + = - 2x 6 2x 5 + = - 2x 12 2x 5 - =- 2x 2x =- 12 5

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Solve for the indicated variable. 10. - = 2x 3y 9 - = - + 2x 2x 9 - - =- (- + ) 13 3y 13 2x 9 = - y 23x 3 For each graph write the corresponding inequality and the solution set to the inequality using interval notation. 12. +--+--(--+--+--+--+--]--+--+--+ -5 -4 -3 -2 -1 0 1 2 3 4 5 The 2 is included because of the bracket and the three is not included because of the paragraph. - < ≤ 3 x 2 The interval is (-3, 2] Solve each inequality. State the solution set in interval notation and sketch its graph. 14. - - <- 4 3w 5 2w - + <- 4 3w 15 2w - <- 19 3w 2w < 19 w > w 19 The interval is (19, ∞) 16. < - < 1 3x 2 7 < < 3 3x 9 < < 1 x 3 The interval is (1, 3) Write a complete solution to each problem.
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Unformatted text preview: 18. The perimeter of a rectangle is 72 meters. If the width is 8 meters less than the length, then what is the width of the rectangle? + + = 2x 2x 8 72 + = 4x 16 72-=-16 72 16 = 4x 56 = 44x 564 = x 14 + = x 8 22 20. How many liters of a 20% alcohol solution should Maria mix with 50 liters of a 60% alcohol solution to obtain a 30% solution? . + . = . + 0 20x 0 6050 0 30x 50 . + = . 0 20x 15 0 30x = . 15 0 10x = 10 x 20% solution is 150 liters 22. If the degree measure of the smallest angle of a triangle is one-half of the degree measure of the second largest angle and one-third of the degree measure of the largest angle, then what is the degree measure of each angle? + + = x 2x 3x 180 = 6x 180 = x 30 The angles are °, °, & ° 30 60 90...
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Chapter 2 Test Problems even numbers - 18 The perimeter of...

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