3 years ago

tammy charges a one time fee of $1450 for travel and then $9 per hour for labor how many hours will she need to work to make $10

Mathematics

1 answer:

jasenka [17]3 years ago

8 0

Answer:

She'd have to work for 12 hours.

Step-by-step explanation:

100 ÷ 9 = 11.11

Rounded up its 12

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(x+3)^2=4

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Answer:

x = -1, -5

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${(x + 3)}^{2} = 4 \\ = > {x}^{2} + 2 \times x \times 3 + {3}^{2} = 4 \\ = > {x}^{2} + 6x + 9 = 4 \\ = > {x}^{2} + 6x = 4 - 9 \\ = > {x}^{2} + 6x = - 5 \\ = > {x}^{2} + 6x + 5 = 0 \\ = > {x}^{2} + 5x + x + 5 = 0 \\ = > x(x + 5) + 1(x + 5) = 0 \\ = > (x + 1)(x + 5) \\ = > x = - 1 \: \: or \: \: - 5$

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