There is a special kind of substitution which some books call it by comparison.
When the two equations are both
y=some function of x
y=some other function of x, then
we can substitute the second equation into the first giving
some function of x = some other function of x and start solving.
For example,
<span>y = –2x + 8
y = x – 1
substitute second into first
x-1=-2x+8
isolate x on left,
3x=9
x=3
second step is to substitute x=3 into second equation to get
y=x-1=3-1=2
Therefore the solution is (3,2)</span>
Answer:
3
Step-by-step explanation:
to find the distance you need to divide the lawns by how long it took.
6 dived by 18= 3
The comment on top of me is a virus don’t go on it
Number 1.) In game 1 he scored 180 points, In game 2 he scored 200 points this means the score went up , so now you have to add, ( Addition ).
180 + x = 200 | x=? , well 180 + 20 = 200.
Since there is 20 points added to 180 which gives us 200 there is an 11.11% increase .
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Number 2.) , In the next game he scored 200 points , it asks what is the decreased number?
how many numbers did his score drop? 200 - 180 = 20 |
Now we must work backwards , There is a loss in points , ( 20 ) , so there is an 10% decrease.
(200-180) / 180 * 100% = 10%
20 / 200 * 100% = 10%
20 = The Answer with an 11.11% increase , there is a 10% decrease.
I hope this helps you a lot
Answer:
cm I think you have draw the situasion
Step-by-step explanation:
sana makatulong ang nasagutan ko
