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Vlad1618 [11]
2 years ago
14

5 Keisha needs postage stamps to mail

Mathematics
1 answer:
DENIUS [597]2 years ago
3 0

Answer:

$4.05

Step-by-step explanation:

45 x 9 = 4.05

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The band director of Eagle Rock High School asks her students to have a car wash as a fundraiser. They are going
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Tha answer is F

Step-by-step explanation:

It relates to because the more cars are washed the more money they make

4 0
3 years ago
A scientist needs 4.8 liters of a 12% alcohol solution. She has available a 22% and a 10% solution. How many liters of the 22% a
yanalaym [24]

Answer:

  • 4.0 L of 10%
  • 0.8 L of 22%

Step-by-step explanation:

For mixture problems, it is convenient to define a variable to represent the amount of the greatest contributor. Let x represent the amount of 22% solution in the mix. Then 4.8-x is the amount of 10% solution.

The amount of alcohol in the mix is ...

  0.22x +0.10(4.8-x) = 0.12(4.8)

Eliminating parentheses, we have ...

  0.22x -0.10x +0.10(4.8) = 0.12(4.8)

Subtracting (0.10)(4.8) and combining x-terms gives ...

  0.12x = 0.02(4.8)

  x = (0.02/0.12)(4.8) = 0.8 . . . . . divide by the x-coefficient

The scientist needs 0.8 L of 22% solution and 4.0 L of 10% solution.

5 0
3 years ago
So I need someone to asnwer this ASAp since my he is due in 20 minutes. Please help!
dem82 [27]
A)6 ^^^^^^^^^^^^because
5 0
3 years ago
What is 3 In3-In9 expressed as a single natural logarithim
Alexandra [31]

3 \ln 3 - \ln 9 = 3 \ln 3 - \ln 3 ^2 = 3 \ln 3 - 2 \ln 3 = \ln 3

Answer: \ln 3

7 0
3 years ago
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I need help. I have been stuck on this for an hour now.​
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Answer:

The one about the beetles

Step-by-step explanation:

8 0
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