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Sedaia [141]
3 years ago
14

I forget how to do this problem, little help-?

Mathematics
1 answer:
jenyasd209 [6]3 years ago
4 0

X=4

Please mark brainliest

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On his way to work, a man notices that 9 of the 16 traffic lights are green. Is there statistical significance to say that these
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Yes because the results are unlikely to occur by chance, is what I think .
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3 years ago
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At the farmers market two pounds of peaches cost 4.20 how much would five pounds cost show work
Marizza181 [45]

Hey!

You can make a proportion:

\frac{2}{\$ 4.20} = \frac{5}{x}

Cross multiply

\$ 4.20 \times 5 = \$ 21

Divide by 2

\$ 21 \div 2 = \$ 10.5

<em>5 pounds would cost $10.50</em>

Good luck and hope this helps! :)

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B) Write an expression for fin terms of d.<br> c) Work out e-f<br> Simplify your answer.
olga2289 [7]

Answer:

3d+ e+f

Step-by-step explanation:

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3 years ago
Hayden is a manager at a landscaping company. He has two workers to landscape an entire park, Cody and Kaitlyn. Cody can complet
belka [17]
Answer: 3.4 h

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1) The basis to solve this kind of problems is that the speed of working together is equal to the sum of the individual speeds.

This is: speed of doing the project together = speed of Cody working alone + speed of Kaitlyin working alone.

2) Speed of Cody

Cody can complete the project in 8 hours => 1 project / 8 h

3) Speed of Kaitlyn

Kaitlyn can complete the project in 6 houres => 1 project / 6 h

4) Speed working together:

1 / 8 + 1 / 6  = [6 + 8] / (6*8  = 14 / 48 = 7 / 24

7/24 is the velocity or working together meaning that they can complete 7 projects in 24 hours.

Then, the time to complete the entire project is the inverse: 24 hours / 7 projects ≈ 3.4 hours / project.Meaning 3.4 hours to complete the project.
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In aremethic, variables look like
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Answer:

variables look like letters of the alphabet.

I hope this helps

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3 years ago
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