Mathematics: Rose buys 5 packs of cigarettes a week and each pack cost $5.50. if she quit smoking and saved the money,how long would it take her to pay for tuition for one college-level course?

Rose buys 5 packs of cigarettes a week and each

Ответ:

jeffrieskids13

07.06.2020

Mathematics

How much does the course cost?

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Ответ:

PONBallfordM89

11.05.2020

Mathematics

Let x be the speed of the slower plane, in km/h. Then the faster plane travels at x+40.
[2 hrs at speed x] + [(2 hrs - 1/2 hour) at speed (x+40)] = 2860(2x) + (1.5)(x+40) = 2860 solve for xx=800x+40=840
Plane 1 800 km/h
Plane 2 840 km/h

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Rose buys 5 packs of cigarettes a week and each pack cost $5.50. if she quit smoking and saved the money,how long would it take her to pay for tuition for one college-level course?

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