Résoudre les inéquations suivantes et présenter les solutions sur une droites graduée: a) 4x-5>7x-6 b) -2+x/3
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Answer:
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Step-by-step explanation:
Call x the number of times the standard quality version was downloaded and call y the number of times the high quality version was downloaded.
So, we know that
MB (1)
We also know that the high-quality version was downloaded four times as often as the standard version.
So
(2)
We substitute equation (2) in equation (1) and solve for x.