Algebra POW HELP!!!!!

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The cost of renting a bus to go snowboarding was split evenly by the 20 students planning to go. The day before the trip, 10 more students decided to go. Dividing the cost evenly among all 30 students brought the average cost down by $9.00 per person. What was the total cost of renting the bus?

  • Algebra POW HELP!!!!! -

    Cost/30 + 9 = Cost/20

    multipy both sides by 600

    20 Cost+5400=30Cost

    Cost= 540 dollars check that.

  • Algebra POW HELP!!!!! -

    what is the answer to pow4

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