Please help quickly,Thank you!v v v v v v v v v v v v

Mathematics

2 answers:

allsm [11]3 years ago

6 0

Answer:

The HCF of 15 and 20 is 5.

Step-by-step explanation:

The given numbers are 15 and 20.

The factors 15 are

$15=3\times 5$

The factors of 20 are

$20=2\times 2\times 5$

From the above factors it is noticed that the 5 is the common factor.

$H.C.F.=5$

Therefore the HCF of 15 and 20 is 5.

Illusion [34]3 years ago

4 0

Based on these trees, your greatest common factor or highest common factor is they call it, would be 5. It is the largest number that divides evenly into both 15 and 20.

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Today joelle walked at a rate of 3 miles per hour and she ran 15 minutes at a rate of 6 miles per hour.How many total miles did

svetoff [14.1K]

I added a screenshot with the complete question

Answer:
Total miles = 2.5 miles

Explanation:
1- While walking:
We are given that Joelle walked 20 minutes at a rate of 3 miles per hour.
This means that she walked $\frac{20}{60} = \frac{1}{3}$ of an hour at a rate of 3 miles per hour
The formula that relates distance, time and velocity is:
Distance = velocity * time
Substitute with the givens to get the distance she covered while walking:
Distance = 3 * $\frac{1}{3}$ = 1 mile

2- While running:
We are given that Joelle ran 15 minutes at a rate of 6 miles per hour
This means that she ran $\frac{15}{60} = \frac{1}{4}$ of an hour at a rate of 6 miles per hour
The formula that relates distance, time and velocity is:
Distance = velocity * time
Substitute with the givens to get the distance she covered while running:
Distance = 6 * $\frac{1}{4}$ = 1.5 miles

3- getting the total mileage:
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 :)