gabby2463 gabby2463
  • 23-06-2019
  • Mathematics
contestada

Challenge 1:
The sum of two numbers is 20, and the difference between their squares is 40. Find the numbers.
Challenge 2:
What is the number?
It is greater than 15 squared. It is not a multiple of 3 or 5, but a multiple of 4. It is less than 20
squared. It is not a multiple of 17. It is a square number.

Respuesta :

aashish2002 aashish2002
  • 23-06-2019

11+9=20

(11)^2-(9)^2=40

121-81=40

40=40

Answer Link

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