Example of linear equation:
Let's have the linear equation;
<h3 /><h3>Put x=1</h3>
<h3>Put x=2</h3>
<h3>Put x=3</h3>
Answer:
<u>The three equations:</u>
- y = 15x, wolf
- y = 10x + 15, you
- y = 5x + 20, friend
<u>Compare the equations with wolf and you and with wolf and your friend:</u>
- 15x = 10x + 15
- 5x = 15
- x = 3 seconds
It will take 3 seconds before you are caught by the wolf
- 15x = 5x + 20
- 10x = 20
- x = 2 seconds
It will take 2 seconds before your friend is caught by the wolf, he will be caught a second before you.
Answer:
Step 2
Step-by-step explanation:
Mario made a mistake in Step 2 when substracting 
from 
. When substracting his result ended up being 
but it is actually....
so the right answer is 
Answer:
x = 2.4 or x = 0.3
Step-by-step explanation:
3x² - 8x + 2 = 0
Quadratic formula
x = {-b ±√b² - 4ac} / 2a
a = 3
b = -8
c = 2
x = {-b ±√b² - 4ac} / 2a
= {-(-8) ±√(-8)² - 4*3*2} / 2*3
= (8 ± √64 - 24) / 6
= (8 ± √40) / 6
= (8 ± 2√10) / 6
= 8/6 ± 2√10/6
= 4/3 ± √10 / 6
x = 4/3 + √10 / 6 or 4/3 - √10 / 6
x = 2.4 or x = 0.3
