Unit Test — Unit test Answers
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Jamie and Owen joined a monthly walking challenge at their youth center. Jamie has already walked 120 minutes and plans to walk 20 minutes per day. Owen plans to walk 30 minutes per day. Let x represent the number of days and y represent the total number of minutes walked during the challenge. Which system of equations can be used to find the number of days it will take for Owen and Jamie to have walked the same number of minutes?
A
A system of equations. y equals 20 x plus 120. y equals 30 x.
B
A system of equations. y equals 20 x. y equals 30 x plus 120.
C
A system of equations. y equals 120 x plus 20. y equals 30 x.
D
A system of equations. y equals 120 x. y equals 30 x plus 20.
23
Erik rode down an escalator, while Raj rode up.
A
Erik and Raj were at the same elevation after both of them had been riding the escalator for 6 seconds.B
Erik and Raj were at the same elevation after both of them had been riding the escalator for 8 seconds.C
Erik and Raj were at the same elevation after Erik had been riding the escalator for 6 seconds and Raj had been on the escalator for 8 seconds.D
Erik and Raj were at the same elevation after Erik had been riding the escalator for 8 seconds and Raj had been on the escalator for 6 seconds.25
The tables represent two linear functions in a system.What is the solution to this system?
A
(1, 0)B
(1, 6)C
(8, 26)D
(8, –22)Did you find these answers helpful?
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