X= 6 y=9 and the last one is -40 i believe. the middle ones i'm not sure of
Answer:
Ms. Thomas was driving at constant rate of 52 miles/hour.
Step-by-step explanation:
Given:
Total time to travel (t) = 45 minutes
Distance drove (d) = 39 miles
we need to find the constant rate in miles per hour at which she was driving.
Solution:
Now we know that;
We need to find constant rate at miles per hour;
But time is given in minutes.
So we will convert minutes into hour by dividing by 60 we get;
time 
Now we know that;
Distance is equal to rate times time.
framing in equation form we get;
distance 
Or
rate 
Hence Ms. Thomas was driving at constant rate of 52 miles/hour.
Number of hours Xavier worked on Monday = 10 hours
Number of hours Xavier worked on Tuesday = 15 hours
Total pay received by Xavier = $280
Total number of hours worked by Xavier = (10 + 15) hours
= 25 hours
Rate per hour = 280/25 dollars per hour
= 11.2 dollars per hour