Answer: 7
Step-by-step explanation:
Let same number of hours = x,
since the salary earned is also the same, then
Salary of supervisor A = $25x
Salary of supervisor B = $20(30)+$30(x-30)
Equating
25x=600+30(x-30)
30x-25x=900-600
5x=300
x=60 hours
Check:
Salary of supervisor A = 25*60=1500
Salary of supervisor B = 20*30+30*(60-30)=600+900=1500, ok.
Answer:
120
Step-by-step explanation:
solve for x then substitute
Answer: 63 mph
Step-by-step explanation:
Speed is determined by dividing the distance traveled by the time taken to travel it.
Speed = Distance of highway / Time spent on highway
= 157.5 / 2.5
= 63 miles per hour
Answer: Order if operations
Step-by-step explanation:
15-10n+12n
15+12n