Could you possibly be more specific?what math problem did they solve? i can help but just be a little more specific so i can answer your question
Answer:
3/7
Step-by-step explanation:
P(red) = number of red pens / total number of pens
= 3/7
It should be 78.54.
Double check that.
Formula: V=πr2h/3
r2 is R squared
Answer:
53.33 mph
Step-by-step explanation:
Speed is the rate of change of distance with time. Mathematically,
speed = distance/time
and is measured in miles per hour or meter per second.
To get the average speed over the entire trip, we must get the total time spent on trip and the total distance, then apply the speed formula
Time for the first 300 miles
= 300/60
= 5 hours
Time spent on the last 100
= 100/40
= 2.5 hours
Total time of the trip = 5 + 2.5
= 7.5 hours
Total distance covered
= 300 miles + 100 miles
= 400 miles
Average speed on the trip
= 400/7.5
= 53.33 miles per hour
Answer:
There will be 
billion messages sent or received in November.
Step-by-step explanation:
Given.
Number of text messages sent or received 
billion.
Increment on the very next month 
Lets find what is 
⇒
⇒
So we will add this value to our previous months data.
Now
Number of text messages sent in the month of November 
billion.
Rounding to the nearest tenth the answer will be billion.
So billion text messages were sent or received in November.
