Mathematics, 19.11.2020 01:10 barkahigh8089
Part I β Simplifying Expressions
Simplify the following expressions:
13t (2+4)β5t + 15
-2 (3y + 5) β 2
Part IIβ Evaluating Expressions/Equations
True or False?
Each question below shows an equation and a value for x. Which of the following are true?
1. If 2(xβ3)=β10 , then x=2.
2.
If 6xβ2=20 , then x=β 3.
3. If 8(x+5)=48 , then x=1.
4.
If 2x+5=β5, then x=β5.
Page Break
Part III β Solving Equations and Inequalities
Solve the equation x β 23.25 = 22.4
Solve 23 - 3n = 26.
Solve β2 β 5x β₯ 28
Answers: 3
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Isuck at math ; ^; m a student solved this problem and said the answer is 3 feet. chase had a roll of ribbon that contained 7 7/8β feet of ribbon. he cut off one piece that was 3 5/8β feet long and another piece that was 1 1/4β feet from the roll. how much ribbon was left on the roll? is the student's answer reasonable? yes, the answer is reasonable. no, the answer is not reasonable. it should be about 2 feet. no, the answer is not reasonable. it should be about 13 feet. no, the answer is not reasonable. it should be about 4 feet.
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Suppose y varies directly with x. write a direct variation equation that relates x and y. then find the value of y when x=12 y=7 when x=3
Answers: 1
Part I β Simplifying Expressions
Simplify the following expressions:
13t (2+4)β5t + 15...
13t (2+4)β5t + 15...
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