Start with 180. <span>Is 180 divisible by 2? Yes, so write "2" as one of the prime factors, and then work with the quotient, 90. </span>
<span>Is 90 divisible by 2? Yes, so write "2" (again) as another prime factor, then work with the quotient, 45. </span>
<span>Is 45 divisible by 2? No, so try a bigger divisor. </span> <span>Is 45 divisible by 3? Yes, so write "3" as a prime factor, then work with the quotient, 15 </span>
<span>Is 15 divisible by 3? [Note: no need to revert to "2", because we've already divided out all the 2's] Yes, so write "3" (again) as a prime factor, then work with the quotient, 5. </span>
<span>Is 5 divisible by 3? No, so try a bigger divisor. </span> Is 5 divisible by 4? No, so try a bigger divisor (actually, we know it can't be divisible by 4 becase it's not divisible by 2) <span>Is 5 divisible by 5? Yes, so write "5" as a prime factor, then work with the quotient, 1 </span>
<span>Once you end up with a quotient of "1" you're done. </span>
<span>In this case, you should have written down, "2 * 2 * 3 * 3 * 5"</span>
8.) A cube has 6 sides if you roll it 600 times then you have the chance of landing on 6 or 3 you would be landing on 3 or 6 200 times. ( 2/6 times by 600)
9.)The usage differs among different disciplines. In statistics probability can be thought of as the inherent chance of something happening, whereas frequency is the observed number of times it has happened, divided by the number of observations.
Product means multiplication so 5 multiply the unknown number which is 5x. Seven less mean's to subtract so 5x - 7. And then the result is 9. So 5x - 7 is 9 or 5x - 7 = 9.
Sorry for not providing enough explanation last time. But I hope this is enough-
