Answer:
Its the first one Guys
Step-by-step explanation:
I hope that helped :)
Answer:
The percent decrease is approximately 
(Don't know what you are expected to round to.)
Step-by-step explanation:
Percent change can be calculated by doing:
Then you multiply the result to covert it to a percentage.
Let's use this formula:
approximately
Now the answer as a percent is approximately.
The percent decrease is approximately
Let the number of hours = X
Multiply the speed of each train by the number of hours (x) and add them together to equal the total miles:
75x + 95x = 238
Simplify:
170x = 238
Divide both sides by 170:
x = 238/170
x = 1.4 hours.
Check:
75 x 1.4 = 105 miles
95 x 1.4 = 133 miles
105 + 133 = 238 miles
It will take 1.4 hours ( 1 hour and 24 minutes).
Don’t open the link the other person put in, it a virus
Easy just add up the steps, if both of them scored 8 and one scored by 4 just add em up.
