If you put a better pic I will help you
Answer:
2/(x+7)
Step-by-step explanation:
x²+5x-14 factors as (x-2)(x+7)
SO - multiply the fraction on the right by x+7 (both top and bottom)
Then both have the same denominator (x-2)(x+7), and the 1 becomes x+7.
Then you combine the fractions to make ((3x+3)-(x+7))/(x-2)(x+7).
This becomes (2x-4)/(x-2)(x+7).
You can factor the 2 out of the numerator for 2(x-2).
You now have 2(x-2)/(x-2)(x+7)
The (x-2)’s cancel out and you are left with
2/(x+7)
I see it like this: we mupliply almost 4 by a little more then 5, so the result will be around 20 (4*5=20) : so the decimal point must be after the 20 (and it is, the result is 20.67
Answer: Evan's family drove 150 miles on the third day.
Explanation:
Because they had driven the same speed throughout the trip, dividing the miles driven by the hours would result in the miles that they drove per hour. 300/6 and 250/5 = 50. So, Evan's family drove 50 miles per hour. To solve for the hours driven on the third day, you need to multiply the hours driven by the miles that were driven per hour.
3 hrs. x mph (miles per hour) = miles driven on the third day
Hope this helps! Sorry, I don't have the time to reread my answer, but I'm positive that it'll make sense to you somewhat.
