Question

the sum of two numbers is 100 and their product is 900.

Answer 1

Answer:

(90,10) (10,90)

Step-by-step explanation:

$x+y=100\\xy=900$

now solve by substitution

$x=100-y$

so

$xy=(100-y)(y)=900$

your answers are: (90,10) (10,90)

Look at the attached image

Hope this helps!