Basically bill wrote or chose a number. That number that he chose needed to have 2 things.

1. It needed to have been a number in between 27 and 45

2. It needed to have been an odd number in between 27 and 45.

There are only 2 possible choices that are odd, so eliminate the other 2 that are even. Next look at the 2 numbers that are odd.

The digits for each number must add up to 8.

35 - 3 + 5 = 8
43 - 4 + 3 = 7.

Which number adds up to 8. The digits in 35 or 43? It is 35.

Thus the final solution is 35. The number that Bill wrote.

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3 years ago

Describe the rule for multiplying powers with the same base and give an example please

s344n2d4d5 [400]

When multiplying powers with the same base you write the result as a base raised to the power that is the sum of previous two powers:

$a^m\cdot a^n=a^{m+n}.$