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math(Please help)

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Betsy, a recent retiree, requires $6,000 per year in extra income. She has $70,000 to invest and can invest in B-rated bonds paying 17% per year or in a CD paying 7% per year. How much money should be invested in each to realize exactly $6,000 in interest per year?

I do not know what to do for this.

  • math(Please help) -

    ok, so Betsy invest part of her $70,000 in B-rate bonds paying 17% per year
    .17x

    the rest of the $70,000 she invest in a CD paying 7% per year
    .07(70000-x)

    totally she wants to get $6,000 per year
    = 6000

    putting this all together:
    .17x + .07(70000-x) = 6000

    solve for x. that will give how much she invested in B-rated bonds. plug that in 70000-x to find how much she invested in a CD

  • math(Please help) -

    $11,000

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