Asked by Sam

Sophie and Marcos are each saving for new bicycles. So far, Sophie has $13 saved and can earn $5 per hour walking dogs. Marcos has $4 saved and can earn $8 per hour at his family's plant nursery. After how many hours of work will Sophie and Marcos have saved the same amount? What will that amount be? Use the system of equations below to complete the graph.


Sophie: y = 5x + 13
Marcos: y = 8x + 4
Answered by R_scott
5x + 13 = 8x + 4 ... 3x = 9

find x , then substitute back to find y
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