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ra1l [238]
3 years ago
15

HELP ASAP! Please!! Someone help me with these!!

Mathematics
2 answers:
Dmitrij [34]3 years ago
7 0

Answer:

x = -12

Step-by-step explanation:

\dfrac{5}{x - 3} = \dfrac{7}{x - 9}

Cross multiply.

7(x - 3) = 5(x - 9)

7x - 21 = 5x - 45

2x = -24

x = -12

larisa86 [58]3 years ago
3 0

Answer:

x=-12

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Mandarinka [93]
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Explanation:
Graphing calculator
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3 years ago
Please help! I’ll mark you as brainliest
dezoksy [38]

Answer:

$37,449

Step-by-step explanation:

<u>First convert 5% into a decimal</u>

.05

<u>Multiply the decimal by Alice's salary</u>

$39,420(.05)=1,971

<u>Now we subtract that answer from her salary this year</u>

$39,420-1,971=$37,449

<h3><u>Alice's salary last year was $37,449</u></h3>
5 0
3 years ago
A musical instrument has a pitch of 220 hertz when the wavelength is 3 feet. When the wavelength is 4 feet, the pitch is 165 her
ZanzabumX [31]

Answer:

239

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
Find the volume of a cube whose surface area is 150Ft
bagirrra123 [75]
150x4 is 600 volume for the answer
4 0
4 years ago
A technician charges an initial fee of $300 plus an hourly fee of $60. Mr. Jenks paid the technician $480. How many hours did th
valentina_108 [34]

3 hours

subtract the initial fee from the payment

$ 480 - $300 = $180

divide $180 by $60 = 3 hours



7 0
3 years ago
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