Luis rides his bicycle 3/4 mile in 15 minutes, or 1/4 hour, along the bike trail. assuming he rides at a constant rate, what is his speed, in miles per hour?

Luis speed in miles per hour is 3

Luis' speed in miles per hour can be determined by dividing the distance he rode in miles by the time in hours. The time measurement that would be used would be  in hours instead of minutes because the measurement has to be in miles per hour

Speed = distance / time

Distance =

Time =

Speed =   ÷  

x 4 = 3 miles per hour

In order to determine Luis' speed, divide the distance he rides by the time.

To learn more about speed, please check: link

His speed in miles per hour is:

3Mph

Step-by-step explanation:

Depending on the speed you take in miles per minute when passing it to miles per hour, you should consider the time it takes you to travel a mile.

Now: If 3/4 of a mile is 0.75 miles.

And it takes 15 minutes, so how long does it take 1 mile?

It is a rule of three.

0.75 miles = 15 minutes

1 mile = X

Clearing X would give :

 X = 15 * 1 / 0.75

X = 20 minutes takes a mile to travel

Now if it goes to 1Mpm how much is in Mph?

If it takes 20 minutes to travel 1 mile, how many travels in 60 minutes (1 hour)

Again rule of 3.

20 minutes = 1 mile

60 minutes = X

Clearing X would give:

X = 60/20

X = 3 miles per hour.

Luis rides 3 miles per hour.

costs the what? what is the cost of the pants?

step-by-step explanation:

if it is $10, then the price is 14.

take 40% of the cost, and then add the cost.

40% of 10 = 4

4+10 = 14.

the correct option is:

b. a value of the variable that makes the polynomial equal to zero.

the root or roots of a polynomial are the values of the variable that makes the polynomial equal to 0. we can find the roots of a polynomial making the expression equal to 0 and then, isolating the variable (it it has just one variable).

for example, given the following polynomial:

the root or zero of the polynomial, can be found by making the expression equal to 0, and then, isolating the variable, so, finding the root we have:

therefore, we have that the root of the polynomial is equal to 2.

we must remember that the number of roots that a polynomial can have, will depend on the degree of the polynomial, a first degree polynomial have will have one single root, a second degree polynomial (quadratic expression) may have two roots and so.

hence the correct option is:

b. a value of the variable that makes the polynomial equal to zero.

have a nice day!