yaneth0310p8flas
05.05.2020 •
Mathematics
Mary spent a total of $321.04 for a party. She spent $200.84 on food, plus an additional $30.05 for each hour of the party. How long was the party?
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Ответ:
Four hours.
Step-by-step explanation:
$321.04 - $200.84 = $120.20
$120.20 / $30.05 = 4. 4 Hours.
Ответ:
14
Step-by-step explanation:
Plug in 15 in this equation for e and 2 for f.