JustANormalDude JustANormalDude

23-03-2017
Mathematics

contestada

It took Mary 1.5 hours to bicycle 39km. Then she slowed down and took another 3 hours to bicycle 51 km more. Find her average speed for the trip

Respuesta :

texaschic101 texaschic101

23-03-2017

average speed = (total distance) / (total time)

average speed = (39 + 51) / (1.5 + 3)
= 90 / 4.5
= 20 km per hr <==

Answer Link

Otras preguntas

Pls help its emergency!!!

What are the steps to solve this problem?0.0000000009 ÷ 0.0003Show your working. Plizzzzzzzzzzzzzzzzzzz.......

which statement about plant classification below is true?

100 POINTS + BRAINLY Which of the following questions can be answered by science? I. How does ocean acidification affect marine biodiversity? II. Which climate

The equation y=mx+b goes through the points (4,8) and (-6,3). What is the value of m? What is the value of b?

What is the value of (x – 3) if – 5(3x – 9) = -15?

Find a number less than 30 where the sum of the digits is 10 and the difference between the digits is 6.

3 times a number minus 2 is 7.

prove that 3 power p + 1 - 3 power P upon 2 multiply 3 power p is equal to 1

If you could create a new country, would you name it and where would it be?