Factor 90 and find a combination that would add up to 21. 3x3x5x2. Try 3x3 plus 5x2. Nope. Try 3x5 plus 3x2. 15 + 6 = 21. Got it!
19
8 and 8
8 and 5
17 and 3 are two prime numbers whose sum is 20. Their product is 51.
9
19
find two positive numbers whose product is a maximum. 1.) the sum is s.
10 and 3
9 and 6
you are a nerd
8 and 8
8 and 5
They are: 4 and -3
The numbers are 18 and 20.
Three and Seven
17 and 3 are two prime numbers whose sum is 20. Their product is 51.
31