Alia works in a surf shop. She earns a weekly salary of $475 plus a commission of

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Alia works in a surf shop. She earns a weekly salary of $475 plus a commission of 15% of her weekly sales total. Alia’s weekly earnings, E, can be represented with the linear equation E = 475 + 0.15x, where x represents her weekly sales.

a) Determine Alia’s weekly earnings if her weekly sales were $1500.

b) For one week, Alia’s weekly earnings were $649. Determine her weekly sales.

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A Survey Of Mathematics With Applications

ISBN: 9780135740460

11th Edition

Authors: Allen R. Angel, Christine D. Abbott, Dennis Runde

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