College algebra word problem?

The U.S. Maritime Administration estimated that the cost per ton of building an oil tanker could be represented by the model y =109,000 / (x + 230) , where y is the cost in dollars per ton and x is the tons (in thousands). What size of oil tanker (in thousands of tons) can be built for $350 per ton?

Comments

  • y =109,000 / (x + 230)

    350 =109,000 / (x + 230)

    350(x + 230) = 109,000

    350x + 80,500 = 109,000

    350x = 28,500

    x = 28,500/350

    x = 81.4

    At $350 per ton an oil tanker of 81.4 thousand (81,400) tons can be built.

  • 350 = 109000/(x + 230)

    solve for x

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