Lets say you have 5 apples, but the you give away 3 of them.
To work how many you have left you take away.
5-3 = 2
Lets apply this with fractions now.
You have 9/7 yard, but then you give away 7/20 yard.
Now you take them away:
9/7 minus 7/20 = 131/140
Hope this helps :)
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The percentage increase China's population from 1970 to 1995 is: 56.25%.
<h3>How to Calculate Percentage Increase?</h3>
Percentage increase = (Final Value - Original Value)/Original value × 100.
Given the following:
Original value = 0.8 billion
Final Value = 1.25 billion
Final Value - Original Value = 1.25 - 0.8
Final Value - Original Value = 0.45
Percentage increase = 0.45/0.8 × 100 = 56.25%.
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Answer:
Option C is the answer.
Step-by-step explanation:
To find the equation of the straight line equation i.e, we must be given with the two points
and 
Since from the graph the two points closest to the line are
and 
Equation of line with two points closest to the line :

where m is the slope.
First we find the slope(m)=

on simplify we get,
.
Now, to find the equation of the line: 

Apply distributive property on right hand side, we get
Adding both sides by 36, we get

.
The equation for the linear model in the scatter plot obtained by the two closest point
closest to the line is,

First find slope of line j
(-1-5)/(6+3) = -6/9 = -2/3
Perpendicular = opposite sign and reciprocal slope
Solution: 3/2