Stephanie also is 2/5 m Ike’s in 1/4 hour. What is her speed in mikes per hour?

1.6 m/hr

Step-by-step explanation:

(Time) 1/4 of an hour = .25 or 15 mins

Distance = 2/5 mile or .40

Speed = distance / time

Speed = .40 / .25

Speed = 1.6 m/hr

1 3/5 or 1.6 mph

Step-by-step explanation:

2/5 of a mile = 0.4 miles

0.4 x 4 = 1.6 or 1 3/5 (you get the 4 from multiplying 1/4 of an hour by 4 to get one hour)

b. y = 4x - 2

step-by-step explanation:

to find a parallel equation to an equation, make sure both equations have the same slope but different y-intercepts.

y = 4x + 1

4 = slope

1 = y-intercept

y = 4x - 2

4 = slope

-2 = y-intercept

they both have the same slope but different y-intercepts, so, b. is the correct answer.

and to check your work, you can graph both equations. : )