Prime numbers are numbers that can be divided by one or by itself such as 5 for example is a prime number because it can be evenly divide by one or 5. Hope this helps! <3
Combination and permutation are two different things. In combination, the number of possible ways considered do not include the order of the elements as a factor. On the other hand, the order of elements in permutation is important. Using the calculator, 5C4 is equal to C.5
Solution Add whole numbers together and fractions together 3 1/2 + 5 1/3 = (3 + 5) + (1/2 + 1/3) Write fractions with the same denominator = 8 + (3/6 + 2/6) = 8 5/6
It takes Julia 1/2 hour to wash, comb her hair and put on her clothes, and 1/4 hour to have her breakfast. How much time does it take Julia to be ready for school? Solution The total time for Julia to be ready for school is 1/2 + 1/4 Write fractions with the same denominator = 2/4 + 1/4 = 3/4 of an hour.
