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Giselle works as a carpenter and as a blacksmith. She earns $20 per hour as a carpenter and $25per hour as a carpenter and 30 hours, and earned a total of $690.How long did Giselle work as a carpenter last week, and how long did she work as a blacksm

Respuesta :

change 30 hours into minutes, then divide by 20 and 25
she worked 18 hours as a blacksmith and 12 hours as a carpenter

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