contestada

I thought of a number, then divided it by another number, and got a result of 7. Think of the possible values for my number and the number I divided it by. What number is impossible to divide by? What number can my original number not be?

My number is a multiple of ?
The number I divided my number by can be any number but ?
My number cannot be a number which we cannot divide by ?

Respuesta :

merlynthewhizz
Let the first unknown number be [tex]x[/tex]
And the second unknown number be [tex]y[/tex]

We know that [tex]x[/tex] ÷ [tex]y[/tex] = 7

My number is a multiple of 7 and also multiple of [tex]y[/tex]
This is because of 7 × [tex]y[/tex] = [tex]x[/tex]
-----------------------------------------------------------------------------------------------------------

The number I divided my number by can be any number but ZERO
Because [tex]x[/tex] ÷ 0 is undefined
--------------------------------------------------------------------------------------------------------------

My number cannot be a number which we cannot divide by SEVEN
Because [tex]x[/tex] ÷ [tex]y[/tex] = 7, so [tex]x [/tex] must be divisible by 7 to obtain [tex]y[/tex]

[tex] \frac{x}{y} =7[/tex]
[tex] \frac{x}{7} =y[/tex]
[tex]7y=x[/tex]


Otras preguntas

Q&A Education