Hi!
The answer is one
When you solve this system of equations you get an answer for y and an answer for x.
It looks kinda like this: x=3, y=-4
Thus, your answer is one solution
I hope this helps!
Feel free to give brainliest if you think I deserve it!
Answer:
The domain of the expression is all real numbers except where the expression is undefined. In this case, there is no real number that makes the expression undefined.
Interval Notation:
(
−
∞
,
∞
)
Set-Builder Notation:
{
x
|
x
∈
R
}
Step-by-step explanation:
hope that helps bigger terms
Answer:
A
Step-by-step explanation:
I added a screenshot with the complete question
<u><em>Answer:</em></u>Total miles = 2.5 miles
<u><em>Explanation:</em></u><u>1- While walking:</u>
We are given that Joelle walked 20 minutes at a rate of 3 miles per hour.
This means that she walked
![\frac{20}{60} = \frac{1}{3}](https://tex.z-dn.net/?f=%20%5Cfrac%7B20%7D%7B60%7D%20%3D%20%20%5Cfrac%7B1%7D%7B3%7D%20)
of an hour at a rate of 3 miles per hour
The formula that relates distance, time and velocity is:
Distance = velocity * time<u>Substitute with the givens to get the distance she covered while walking:</u>
Distance = 3 *
![\frac{1}{3}](https://tex.z-dn.net/?f=%20%5Cfrac%7B1%7D%7B3%7D%20)
= 1 mile
<u>2- While running:</u>
We are given that Joelle ran 15 minutes at a rate of 6 miles per hour
This means that she ran
![\frac{15}{60} = \frac{1}{4}](https://tex.z-dn.net/?f=%20%5Cfrac%7B15%7D%7B60%7D%20%3D%20%20%5Cfrac%7B1%7D%7B4%7D%20)
of an hour at a rate of 6 miles per hour
The formula that relates distance, time and velocity is:
Distance = velocity * time<u>Substitute with the givens to get the distance she covered while running:</u>
Distance = 6 *
![\frac{1}{4}](https://tex.z-dn.net/?f=%20%5Cfrac%7B1%7D%7B4%7D%20)
= 1.5 miles
<u>3- getting the total mileage:</u>
Total distance she covered = distance while walking + distance while running
Total distance she covered = 1 + 1.5
Total distance she covered = 2.5 miles
Hope this helps :)