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julsineya [31]
3 years ago
11

One number is four more than four times another. If their sum is decreased by six, the result is twenty-eight. Find the numbers.

Mathematics
1 answer:
Vsevolod [243]3 years ago
6 0

let "one number" = x, and "another" = y

x = 4y + 4

(x + y) - 4 = 28

Plug in 4y + 4 for x

4y + 4 + y - 4 = 28

Simplify. Combine like terms

5y = 28

Isolate the y. Divide 5 from both sides

y = 28/5

y =  5.6

Plug in 28/5 for y.

x = 4y + 4

x = 4(28/5) + 4

Simplify

x = 22.4 + 4

x = 26.4

x = 26.4, y = 5.6

hope this helps

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<span>Simplify: (Show steps)</span><span><span><span>−<span>5x</span></span>+20</span>=<span>−<span>30

</span></span></span>Step 2: Subtract 20 from both sides.<span><span><span><span>−<span>5x</span></span>+20</span>−20</span>=<span><span>−30</span>−20</span></span><span><span>−<span>5x</span></span>=<span>−<span>50

</span></span></span>Step 3: Divide both sides by -5.<span><span><span>−<span>5x</span></span><span>−5</span></span>=<span><span>−50</span><span>−5</span></span></span><span>x=<span>10

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Answer:

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Step-by-step explanation:

A group conducted a poll of 2083 likely voters.

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The margin of error shows by how many percentage points the  results can deviate from the real proportion.

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As you can see, with the given margin of error its is possible that candidate A wins and candidate B loses, and it is also possible that candidate B wins and candidate A loses. Therefore, the poll cannot predict the winner and this is why race was too close to call a winner.

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