I hope this helps you

distance=speed×time

first cars time t

second cars time t+3

same distance

distance=55.t

distance=40. (t+3)

55t=40 (t+3)

55t-40t=120

15t=120

t=8

t+3=11

4 0

3 years ago

Please simplify n-2/n^2-4

Doss [256]

Answer:

$\frac{1}{ {n} + {2}}$

Step-by-step explanation:

$\frac{n - 2}{ {n}^{2} - 4} \\ \\ = \frac{n - 2}{ {n}^{2} - {2}^{2} } \\ \\ = \frac{n - 2}{ ({n} + {2})({n} - {2})} \\ \\ = \frac{1}{ {n} + {2}} \\$

8 0

3 years ago

I need to know the answer to this problem plz

jekas [21]

Yes because 6×6 is 36 and 9×4 is 36.
the blue shows who will get the free apple juice and the red the free popcorn the last one is the 36th person

8 0

3 years ago