Kate left her house at 2 pm and rode her bicycle at 10 mph north to the park. She got a flat tire and had to walk the same route
back at 4 mph. The round trip took 3 hours. How long did it take her to get to the park?
Which piece of information is NOT relevant?

exa:

)

3+11

14

step-by-step explanation:

from this example, we can see that subtracting with integers is the same as adding the opposite. we can solve using a number line or by using the saying "keep, change, change" to us solve. it is important to remember that we can subtract a negative and end up with a larger number than we started with.

no idea

step-by-step explanation:

22

step-by-step explanation:

22

step-by-step explanation:

let pq = qr = rs = x, and xz = y and zu = z.

if the horizontal lines are parallel, then corresponding segments are in proportion:

substitute:

therefore 3 = y = z.

xu = y + z → xu = 3 + 3 = 6