Question

can you help?
Use guess, check and comment to find two numbers whose sum and product are given. Sum = 83, product = 1632

Answer 1

form a system
x+y=83--->x=83-y
xy=1632 -----> (83-y)y=1632-->-y^2+83y-1632=0--->y=32 or y=51

so x=83-32=51 or x=83-51=32

Answer 2

Get it?

Answer 3

can you do it without forming a system? or a simpler way?

Answer 4

guess...

Answer 5

hmmmmmm...but this is a veryyyyyyyy easy way... 1st u form the system x+y=83
x*y=1632

in the first eq x=83-y and then we replace (83-y) instead of x then i guess u know how to solve this kind of eq

Answer 6

true but not guess, check, comment....

Answer 7

Guess 43 and 40. check product, comment yes/no too big/too small..

Next Guess, repeat, close in on answer.

Answer 8

@Estudier O.o O.o :O

Answer 9

Like developing an algorithm, low grade CS stuff:-)

Answer 10

i will take your response into thought, thank you for answering, i am in the 9th grade and my teacher has obviously not taught me this yet :) what grade are you in?

Answer 11

I'm in Europe and I am retired, I don't know what "9th grade" means..

Answer 12

@Estudier ur in Europe too??? Where are u from?

Answer 13

Born England, live in Spain.

Answer 14

im australian, and 14

Answer 15

So, like 3rd year of secondary school, something like that...

Answer 16

Nice :)

Answer 17

well thanks for the help. bye :)

Answer 18

This question is in math class or computing?

Answer 19

math class