Answer:x = -8
Step-by-step explanation:
The weekly earning for the waitress is $475.
Step-by-step explanation:
Weekly salary = $275
Commission = 5%
Worth of dinners served = $4000.00
Amount of commission = 5% of worth of dinners served

Total earned = Weekly salary + Amount of commission
Total earned = 
The weekly earning for the waitress is $475.
Keywords: percentage, commission
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Answer:
Her usual driving speed is 38 miles per hour.
Step-by-step explanation:
We know that:

In which s is the speed, in miles per hour, d is the distance, in miles, and t is the time, in hours.
We have that:
At speed s, she takes two hours to drive. So


However, on one particular trip, after 40% of the drive, she had to reduce her speed by 30 miles per hour, driving at this slower speed for the rest of the trip. This particular trip took her 228 minutes.
228 minutes is 3.8 hours. So

So




Her usual driving speed is 38 miles per hour.
Answer:
yes you just have to solve for both x and y in the top system and then solve the other systems to find out which one has the same solutions
Step-by-step explanation:
hope this helps!
Answer:
640.0
Step-by-step explanation: