Question

The sum of two numbers is 19. Their product is 84. Find the numbers

Answer 1

12

Answer 2

so the sum is 19
find all of the numbers that ADD up to 19
1+ 18, 2 + 17, 3 + 16, 4 + 15, 5 +14, 6 + 13, 7 + 12, 8 + 11, 9 + 10
okay, so the product is 84
out of those numbers, which one will have a product of 84?
1 * 18 = 18
2 * 17 = 34
3 * 16 = 48
4 * 15 = 60
5 * 14 = 70
6 * 13 = 78
7 * 12 = 84

Answer 3

\(\Huge\color{orange}{\bigstar}\huge\color{blue}{WELCOME~TO~OPENSTUDY}\Huge\color{orange}{\bigstar}\)

Answer 4

using @jadeybells chart the last pair of numbers 7 and 12 work
there is a proper algebraic way to do it, but her method should work for now

Answer 5

I do it in a way simpler way and it still comes out with the right answer. Lol no wonder math is so frustrating in school, people always take the long way about things.

Answer 6

@jadeybells
what would you do if your problem was 2 number that add up to 30987 and mulitply to 19087

Answer 7

Lol... When that problem actually comes around i'll use the 'proper' way

Answer 8

you would have to use algebra
\(\Huge\color{orange}{\ddot\smile}\Huge\scr\color{maroon}{LOL}\)

Answer 9

Yeah... Algebra :( xD
I can do it too xD