1.

The sum of two number is 25.One of the number exeeds the other by 9. Find the number.​

Answer»

Answer:

x and x+9 are the numbers

x+x+9=25

2x+9=25

2x=25-9

2x=16

x=16/2

x=8

x+9=8+9=17

8 and 17 are the numbers

 

if you are not in algebra, here is ANOTHER solution:

25/2=12.5

12+13=25

11+14=25

10+15=25

9+16=25

8+17=25  answer

you can do this because 25 is a small number and TRIAL and ERROR, although not the BEST STRATEGY, is a mathematical strategy that you can use


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