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2 years ago

7

In a 3-digit number, the hundreds digit is four more than the ones digit and the tens digit is twice the hundreds digit. If the

sum of the digits is 12, find the three digits. Find the number.

1 answer:

AVprozaik [17]2 years ago

8 0

If the ones digit is "d", the number is (d+4)(2(d+4))(d), and the sum of digits is 4d+12 = 12. Then d=0.

The number is 480.

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2 years ago

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Answer:

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<u />

<u>2. Substitute n = 5 into the equation:</u>

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<u>3. Substitute n = 4 into the equation, subsitute the known values and solve for </u> $a_1$ <u />

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