lilyroseridge lilyroseridge

08-11-2020
Mathematics

contestada

Here is the same number machine.
Input
Output
x 2
+ 3
17
Work out the input when the output is 17.

Respuesta :

jemcarter jemcarter

08-11-2020

The input would be 7
You do the number machine ‘in reverse’ to figure it out from output to input.
17 - 3 = 14
14 / 2 = 7

Answer Link

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