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Ierofanga [76]
3 years ago
7

Evaluate 6+4/a+b/3 when a=4 and b=3

Mathematics
1 answer:
vodka [1.7K]3 years ago
6 0

Answer:

8

Step-by-step explanation:

First, insert the values into the problem. It would look like this: 6 + 4/4 + 3/3

We can then reduce 4/4 into 1 and 3/3 into 1 as well.

Then, you get:

6+1+1 or 6+2 which is equal to 8

-Cheers, Galaxy

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Solve for x. 9^x+15=3^7x
Art [367]

The solution is x = 6

Step-by-step explanation:

Let us revise some rules of the exponents

  • If a^{n}=a^{m} , then n = m
  • (a^{n})^{m}=a^{nm}

∵ 9^{(x+15)}=3^{7x}

∵ 9 = 3 × 3

∴ 9 = 3²

- Substitute 9 by 3² in the equation above

∴ (3^{2})^{(x+15)}=3^{7x}

- Use the second rule above for the left hand side

∵ (3^{2})^{(x+15)}=3^{2(x+15)}

∴ (3^{2})^{(x+15)}=3^{2x+30}

∴ 3^{2x+30}=3^{7x}

- By using the first rule above

∴ 2x + 30 = 7x

- Subtract 2x from both sides

∴ 30 = 5x

- Divide both sides by 5

∴ 6 = x

The solution is x = 6

Learn more:

You can learn more about solving equations in brainly.com/question/7153188

#LearnwithBrainly

3 0
3 years ago
88 less than 8 times a number is 34 less than twice. turn to equation
dedylja [7]
8x - 88 = 2x - 34

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3 0
4 years ago
The value of 7mn to the 2power, for m = 3 and n = -2
siniylev [52]
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Please help me! Sorry if the image is blurry.
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Answer:

B) 27

Step-by-step explanation:

(-3,27)

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(0,15)

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