Answer:
0.96%
Step-by-step explanation:
Well the easy way to do this is
1.262
- - - - - - - x 100 = 100.96%
1.25
( this is just saying, now the thing is 100.96% of it original size)
So now they are asking the increase, so just simply take
100.96 - 100
= 0.96%
One example of this number is 24, or maybe 12, just follow the rules and you'll have a lot of answers.
(a). 8x + y = 20, where (b). y = x2 - 2x + 4
So where y is in equation (a), substitute in the value of y in (b).
8x + (x2 - 2x + 4) = 20
8x + (4) = 20
Get rid of the 4 on both sides (since what you do to one side, you must do to the other)
8x + 4 - 4 = 20 - 4
8x = 16
Get rid of the 8 to leave x on its own
8x ÷ 8 = 16 ÷ 8
x = 2
So now that you have x, find y but substituting in the value you just found (2) into one of the starting equations.
8x + y = 20 where x is 2.
8(2) + y = 20
16 + y = 20
Minus 16 from both sides
y = 20 - 16 = 4
So x is 2 and y is 4
Answer:
Step-by-step explanation:
Given
Required
Determine the average rate of change
Average rate is calculated as thus;
<em>In this case; b = 12 and a = 6</em>
Calculating f(12)
Calculating f(6)
Substitute 12 for b and 6 for a in
Substitute values for f(6) and f(12)
