2 - 6 = -4
Both 21 and 42 will work. ■
...so the number is 10 less than 16. Can you work it out now...?
both 27 and 28 when squared will work
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Start with 1000 and work back, rejecting any composites that you find.
1st odd number . . . 1 (1 less than double 1)2nd odd number . . . 3 (1 less than double 2)3rd odd number . . . 5 (1 less than double 3)4th odd number . . . 7 (1 less than double 4)5th odd number . . . 9 (1 less than double 5)Are you seeing a pattern yet ?6th odd number . . . 11 (1 less than double 6)7th odd number . . . 13 (1 less than double 7)...Qth odd number . . . . (1 less than double Q)
25 percent of 45 = 45*0.25 = 11.25 11.25 < (is less than) 45
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the square root of 223 is less than 15, so we only need to test its divisibility by 2,3,5,7,11 and 13. If you try dividing by any of these you do not get a whole number, so 223 is a prime.
Both 21 and 42 will work. ■
...so the number is 10 less than 16. Can you work it out now...?
both 27 and 28 when squared will work
Whether fractions work better than decimals or less as well is very much a question of your preference.
If you work less than 35 years, your Social Security benefits are calculated based on the number of years you did work, with zeros counted for the years you did not work. This can result in a lower benefit amount compared to someone who worked for the full 35 years.
No. Even if you manage to get it to work, it will be excruciatingly slow.
No. For example, 5 divided by 0.5 is equal to 10. In general, assuming you work with positive numbers only, if you divide by a number GREATER than one, the result will be less than the original number; if you divide by a number LESS than one, the result will be larger than the original number.
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