5/8 is a rational number because 5/8 as a percentage is 62.5. As long as the number doesn't go on forever without any patterns, it will be a rational number. If it does go on forever and doesn't have a pattern then it is an irrational number.
Answer:
2
Step-by-step explanation:
309/17 equals about 18.176 but it’s a rounded answer/decimal.
Step-by-step explanation:
2x-y=8
x+y=20
------------
3x=28
×=28÷3=9.3
so
9.3+y=20
y=20-9.3
y=20.7
Answer:
(-2.5,1)
Step-by-step explanation:
hope that helps