If you run a 10 kilometer race in 42 minutes 42 seconds, what is your average pace (time per mile in minutes and seconds)? what is your average speed in miles per hour?

Solution:

Average Pace = 0.621371 mile

10 km = 6.21371 mile

42 min 42 sec = 42.7 min

Average pace = minute/mile

42 minutes 42 seconds = 2520 + 42 = 2562 sec

Average pace =

Also, 42 min 42 sec = 0.7116 hour

Average speed =

Hence, the average speed is 8.732 mile/hour

mr. flanders’ class sold 47 doughnuts and   mr. rodriquez’s class sold 38 cartons of milk

step-by-step explanation:

let x be the number of doughnuts sold by mr. flanders’ class and y be the number of cartons sold by mr. rodriquez’s class.

1. together, the classes sold 85 items, then

x+y=85.

2. both classes earn earned $104.49 for their school. if doughnuts were sold for $1.35 each, then x doughnuts costed $1.35x. if cartons of milk were sold for $1.08 each, then y cartons costed $1.08y. hence,

1.35x+1.08y=104.49.

3. solve the system of two equations:

step-by-step explanation: the answer is 27. first multiply .32 by 25 which equals 8. then add 8 to 25 which gives you 33. then you subtract that from 6 since she gave 6 to her brother.

,, add !