Answer:
<u>x = -1</u>
Step-by-step explanation:
3(x - 6) - 8x = -2 + 5(2x + 1)
3x - 18 - 8x = -2 + 10x + 5
-5x - 18 = 10x + 3
-15x = 15
<u>x = -1</u>
Answer:
Step-by-step explanation:
So hmmm x²+6x+8=0
alrite.. let's do some grouping now
( x² + 6x + [?]²) + 8 = 0
notice above, we have a missing fellow in order to get a perfect square trinomial... hmm who would that be?
let's take a peek at the middle guy of the trinomial.. 6x.. hmmm let's factor it, 2*3*x, wait a minute! 2 * 3 * x... we already have x² on the left-side, since the middle term is just 2 * the square root of the other two terms, that means that the guy on the right, our missing guy must be "3"
alrite, let's add 3² then, however, bear in mind that, all we're doing is borrowing from our very good friend Mr Zero, 0
so if we add 3², we also have to subtract 3², let's do so
(x² + 6x +3² - 3²) + 8 = 0
(x² + 6x +3²) + 8 - 3² = 0
(x+3)²=3² - 8
(x+3)² = 1
Answer:
2.54 miles/hr
2.04 miles/hr
Step-by-step explanation:
<u>Given: </u> Distance between the two towns = 1100 miles
Difference between speeds = 
miles/hr
Total time when they meet = 240 hours
<u>To find:</u>
Let distance traveled by first group = 
miles.
Now, the distance traveled by second group = (1100-) miles/hr
The relation between Speed, Time and Distance is given as:
Let speed of first group = 
Let speed of second group = 
As per question, = +
Now,
Putting value of :
Similarly, putting value of in :
