Mathematics, 23.06.2019 07:40 maevemboucher78
Sal is trying to determine which cell phone and service plan to buy for his mother. the first phone costs $100 and $55 per month for unlimited usage. the second phone costs $150 and $51 per month for unlimited usage. how many months will it take for the second phone to be less expensive than the first phone? the inequality that will determine the number of months, x, that are required for the second phone to be less expensive is 100 + 55x > 150 + 51x100 + 55x < 150 + 51x100x+ 55 > 150x+ 51100x+ 55 < 150x+ 51.the solution to the inequality is x > 2.4x < 2.4x < 12.5x > 12.5.sal’s mother would have to keep the second cell phone plan for at least 231213 months in order for it to be less expensive
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Sal is trying to determine which cell phone and service plan to buy for his mother. the first phone...
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