3.75 and .75
3.75 + .75 = 4.5
3.75 - 0.75 = 3
24,26
7 & 9
6 and 4.
The numbers are 18 and 12
6,4
The sum of two numbers is 45 and their difference is 5. What are the two numbers? Let's start by calling the two numbers we are looking for x and y. The sum of x and y is 45. In other words, x plus y equals 45 and can be written as equation A: x + y = 45 The difference between x and y is 5. In other words, x minus y equals 5 and can be written as equation B: x - y = 5
43 and 2
8 and 6 have a difference of 2 and a sum of 14.
You can use the formula for the sum of an arithmetic series. Sn = (n/2)[2a + (n - 1)d].....n is the number of terms, a is the first term and d the common difference between terms. In this question, n = 45, a = 1 (as 1 is the first odd number) and d = 2 (the difference between consecutive odd numbers). Then, S(45) = (45/2)[2 + 44x2] = (45/2) x 90 = 2025.
The two numbers are 10 and 2
Three
The numbers are 11 and 10
24,26
9 13
0.4 and 2.
7 & 9
6 and 4.