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21 February, 00:26

A store is having a sale on almonds and jelly beans. For 8 pounds of almonds and 3 pounds of jelly beans, the total cost is $23. For 2 pounds of almonds and

5 pounds of jelly beans, the total cost is $ 10. Find the cost for each pound of almonds and each pound of jelly beans.

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  1. 21 February, 02:01
    0
    each pound of almounds cost $2.50 and jelly beans cost $1 a pound

    Step-by-step explanation:

    1. 8x+3y=23

    2. 2x+5y=10

    2x+5y=10

    -2x - 2x

    5y=-2x+10

    divide both sides by 5

    y = -.4x + 2 then plug this the new y value into the first equation

    8x+3 (-.4x+2) = 23

    8x - 1.2x+6=23

    6.8x+6=23

    -6 - 6

    6.8x=17

    divide both sides by 6.8

    x=2.5

    now plug x in for equation 1 or 2 i choose 2

    2 (2.5) + 5y=10

    5+5y=10

    -5 - 5

    5y=5

    y=1

    x=2.5 y=1
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