2.5
2.5
It is: 5*(b+2) which is the same as 5b+10
Expressed as a formula, this would be equal to (x + 5)/15.
the sum of the elements divided by the number of elements is the average
2.5
2.5
2.5
2.5
(a + b)/(xy)
b: 28
The average of a group of numbers is equal to the sum of the numbers divided by the number of numbers. If you want to find the sum of the five numbers, just multiply 790.6 by 5 to get the sum, which is 3953
2.5
5a plus 2b
if you let b= amount of money then b/20 = 7
You add 2 fractions with the same denominator [c], so the sum is the sum of the numerators divided by the denominator: a/c + b/c = (a+b)/c
It is: 5*(b+2) which is the same as 5b+10