Answer:
The numbers are 27 and 12
Step-by-step explanation:
Let the smaller number be x and the larger number be y.
If the difference between them is 15, then
Also , four times the larger number is nine times the smaller.
From equation (1),
We put the 3rd equation into the 2nd to get:
Expand to get:
Group similar terms
Therefore the larger number is
We have to start with a number , compute , and then use this result as input for
When you give as input to , it returns :
Now, simply means that will return its input plus five.
In this case, the input is , so we have
ITS C
20% of 140 is 28
b=12
a^2+b^2=c^2
(9×9) + b^2= 15×15
81+ b^2= 225
-81. -81
b^2=144
√. √
b= 12