Mathematics, 01.06.2021 07:20 trinityrae4657
A small engineering company has an old machine which produces 30 components per hour, and has recently installed a new machine which produces 40 components per hour. Yesterday, both were in operation for different periods of time. If 545 components were produced when the total number of hours of operation was 15 hours, determine for how many hours each machine was operating. Please use system of linear equations by elimination OR substitution. I also need the work please.
Answers: 2
Mathematics, 21.06.2019 19:00
Pyotr tchaikovsky sporting goods operates on a 45% overhead based on the selling price, which results in an overhead of $65.34 on the newest version of an air hockey game set. if the air hockey game set costs pyotr tchaikovsky sports $49.32, find the selling price, the markup, and the net profit.
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Mathematics, 22.06.2019 00:00
How many quarts of a 50% solution of acid must be added to 20 quarts of a 20% solution of acid in order to get a 40% solution of acid?
Answers: 2
Mathematics, 22.06.2019 03:00
What is the slope-intercept form for each equation in this system? compare the slopes and y-intercepts to describe the graph of the system. 3x - 4y = 28 4x + 10y = 20
Answers: 1
A small engineering company has an old machine which produces 30 components per hour, and has recent...
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