Answer:
B. The flow rate of the large tank is –10 gal/min, and the flow rate of the small tank is 10 gal/min.
Step-by-step explanation:
Let x be the 1st number
x + 9 be the second number
Equation:
x + x+9 = 171
Solution:
2x + 9 = 171
2x = 171 - 9
2x = 162
x = 81
x + 9 = 90
81 + 90 = 171
Step-by-step explanation:
If there 5% is allowed in Rs 1,580 than the selling price of the watch is 1,501
Answer: 54 mph
Step-by-step explanation:
d-the distance
s+9 - the speed to the conference
d=6*(s+9)
s- is the speed on the way back home
d=7*s
so 6*(s+9)=7*s
6s+54=7s
-6s -6s
54= 7s-6s
s=54 mph
A is your answer! Because of how many sides it has.
