Answer:
see below
Step-by-step explanation:
Let x be the original price
x* discount rate = discount
x * 60% = 30
Change to decimal form
x * .60 = 30
Divide each side by .60
x = 30/.60
x =50
The original price was 50 dollars
You need to put everything under a common denominator, which would be 130 in this case.
So 40/130 and 39/130, so the number would be 39.5/13
Well if 5+5=10 adding 1 would give you 11. Or you could do 6+6=12 and then subtract 1. Both 5+5 and 6+6 are doubles facts.
Answer:
{x:x is a real number}
Since any value can replace x to give an integer.
{x:x is a real number}