Answer:
Step-by-step explanation:
Let r represent speed in the carpool.
We have been given that on the way to work Juan carpools with a fellow co-worker then takes the city bus back home in the evening. The average speed of the 20-mile trip is 5 miles per hour faster in the carpool.
We know that time is equal to distance over speed.
The total distance is 20 mile. Time taken to travel 20 miles using carpool would be 
The speed on the bus is 5 miles greater, so it will be 
. Time taken to travel 20 miles using bus would be 
Total time will be equal to sum of both times that is:
Let us simplify our expression.
Combine numerator:
Therefore, our required expression would be .
Answer:
Jamal ran the farthest.
Ming ran the least.
Step-by-step explanation:
We have to write the number of miles ran by each participant as decimal values, before finding who ran the most and the least.
Important to remember that a fraction is a division, so, for example, 2/3 is 2 divided by 3.
Jamal ran 2/3 mile.
2/3 = 0.667
So Jamal ran 0.667 miles
Ming ran 2/4 mile.
2/4 = 0.5
So Jamal ran 0.5 miles.
Liana ran 7/12 of mile
7/12 = 0.583
So Liana ran 0.583 miles
Who ran the farthest?
Jamal ran the highest amount of miles, so he ran the farthest.
Who ran the least?
Ming ran the least amount of miles, so he ran the least.
Hi!
We will solve this by simply multiplying both sides of the equation with 5, like this:
Hope this helps!
Multiply the height by width to find area.
7.5 • 3 = 22.5
Answer:
x=1.4
Step-by-step explanation:
7x-1=1.3x-8.9
7x-1.3x= -8.9+1
5.7x= -7.9
x= -79/57
or x=1.38
