-2y+3=-7y+19 make the equation true?
2 answers:
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The new copier can create 2000 copies in 20 minutes.
Step-by-step explanation:
Given,
It takes 60 minutes to make 2000 copies by old printer and 15 minutes to made x number of copies, therefore, using proportion
Product of mean = Product of extreme
Dividing both sides by 60
As the new copier is working with old copier, therefore,
Copies made by new printer = 2000 - 500 = 1500
New copier can make 1500 copies in 15 minutes and 2000 copies in x minutes, using proportion
Dividing both sides by 1500;
The new copier can create 2000 copies in 20 minutes.
Keywords: ratio, proportion
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