Answer:
The answer is 60 degrees
Step-by-step explanation:
x+20 = 80 (alternate angle)
x=60
<span>(x - y + 1) - (x + y - 1)
x - y + 1 - x - y + 1
= (x - x) + (y - y) + (1 + 1)
= -2y + 2
In short, Your Answer would be: -2y + 2
Hope this helps!</span>
Answer:

Step-by-step explanation:
Given


Required
Determine the percentage of the tip
First, we calculate the amount paid



The percentage of the tip is then calculated using:





Answer:
is one equivalent ratio
Step-by-step explanation:
Given the ratio
← in simplest form
Then to obtain equivalent ratios
Multiply the numerator/ denominator by the same value, that is
= 
A natural number is a positive integer, example, 1,2,5,299 etc.
A rational number is a number that can be expressed as a fraction of integers, such as 245/127, 1/2, 5/1,8/1,...
Since a natural number can be expressed as a fraction of integers, so
a natural number IS a rational number.