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Sonbull [250]
3 years ago
12

(3x - 9) + x + (x + 28) = 184.

Mathematics
2 answers:
Roman55 [17]3 years ago
6 0

x = 33 Answer

hope this helps.

julia-pushkina [17]3 years ago
3 0

Answer:

33

Step-by-step explanation:

rearrange and combine like terms

(3x - 9) + x + (x + 28) = 184

3x - 9 + x + x + 28 = 184

3x + x + x + 28 - 9 = 184

3x + x + x = 184 + 9 - 28

5x = 165

x = 33

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Answer:

33% discount

Step-by-step explanation:

15$ is the amount that was taken off so now we just need to convert it to a % of 45

45/100 = 30/?

if you do cross multiplication and multiply 30 * 100 then divide the result (3000) by 45 you get 66

This means that 30$ is 66% of 45. To find the discount you just subtract 66% (this represents your 30$ new price) from 100% (this represents the 45% original price) and you get 33%.

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3 years ago
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Step-by-step explanation:

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4 years ago
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alexandr402 [8]

Answer:

x = 816 kilometers per hour.

Step-by-step explanation:

Given the following data;

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k = x + 6

We know that the time taken to cover a distance by an object with speed is given by the formula;

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Substituting into the equation, we have;

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Cross-multiplying, we have;

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3 0
3 years ago
88 points for this question ​
soldi70 [24.7K]

Answer:

x = 113°

Step-by-step explanation:

the sum of the interior angles of a polygon is

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