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navik [9.2K]
4 years ago
6

Printer A can print 30 pages per minute. Printer B can print 40 pages per minute. Printer B begins printing 3 minutes after Prin

ter A begins printing. Both printers stop printing 10 minutes after Printer A started. Together, how many pages did the two printers print?
Mathematics
1 answer:
anzhelika [568]4 years ago
8 0

Printer A prints for 10 minutes, so prints

... (30 pages/minute)×(10 minutes) = 300 pages


Printer B prints for 7 minutes, so prints

... (40 pages/minute)×(7 minutes) = 280 pages


At the end of 10 minutes, the two printers will have printed

... 300 pages + 280 pages = 580 pages

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IgorLugansk [536]

2x-5y =-5

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16x = -10

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x = -.626

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3 years ago
X + 6y = 2 4x - 3y = 10 Pick the first step to solving this system of equations using the addition method.
meriva
<span>x + 6y = 2
4x - 3y = 10

The first thing to do when solving a system of equations using the addition/elimination method is to multiply one or both of the equation by a value that will cancel out one of the variable terms. 

Based on this, the correct answer is D - multiply the bottom equation by 2 thus eliminating the y variable when the equations are added together:

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2(4x - 3y = 10)    -->    8x - 6y = 20<span>

Hope this helps.</span>
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Step-by-step explanation:

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