Shelly biked 21 miles in 4 hours. What is Shelly average speed in miles per hour

Mathematics

2 answers:

mojhsa [17]3 years ago

8 0

Divide 21/4

5.25m/h

m=miles
h=hours

Maksim231197 [3]3 years ago

3 0

To solve this, you would divide the miles by the number of hours, 21 / 4
21 divided by 4 equals 5.25

You might be interested in

2.8 = 2y<br> What does y equal?<br> 1.4<br> 0.5<br> 2.8<br> 0.6

igor_vitrenko [27]

Answer: 1.4

Step-by-step explanation: First, swap the sides of the equation so that the one with the variable can be in front.

So, its 2y=2.8

To solve this, you simply divide both sides of the equation by 2.

2 divided by 2 is 0. That leaves you with the y by itself. Then, 2.8 divided by 2 is 1.4

So, y=1.4

7 0

3 years ago

Read 2 more answers

A nick on the edge of a CD rotates to (−6, 5) during one song when represented graphically.

Allisa [31]

By definition, the sine of an angle is given by:
$sin \alpha = \frac{C.O}{h}$
Where,
C.O: opposite leg
h: hypotenuse
The hypotenuse is given by:
$h = \sqrt{(-6)^2+(5)^2}$
$h = \sqrt{(61}$
So, replacing values we have:
$sin \alpha = \frac{5}{\sqrt{61}}$
Rewriting we have:
$sin \alpha = \frac{5\sqrt{61}}{61}$
Answer:
the sine value of this function is:
A)5 times square root 61 over 61

6 0

3 years ago

Read 2 more answers

A square pyramid with a side length of 6 inches has volume of 102 cubic inches. Find the height of the square pyramid.

-BARSIC- [3]

Answer:

the height of a square pyramid is 139.3 cm

7 0

3 years ago

Megan and Kyaa find out they are reading the same book. Although they will be starting on different page numbers,

borishaifa [10]

<h2>40 pages per hour</h2><h2>45 pages per hour</h2><h2> 50 pages per hour</h2><h2>90 pages per hour</h2><h2>125 pages per hour</h2>