Answer: x - 3y = -2
x = -2 + 3y
x - 3y = 16
x = 16 + 3y
You must do work presented inside parentheses first. Thus, do this first: (-5-7).
Answer:
Rational number as denominator is not equal to zero and numerator is a integer.
Answer:
62.5 mph
Step-by-step explanation:
Given that :
Peter :
Speed = 50mph
Start Time = 9 a. M
Emily :
Start time = 9:30
Speed = x
In other to catch up at 11:30 :
Peter (11:30 - 9:00) = 2hours 30 minutes = 2.5 hrs
Total distance moved by Peter :
Speed * time = 50 * 2.5 = 125miles
For Emily to cover 125 miles in (11:30 - 9:30) = 2 hours
Speed = distance / time
Speed = 125 miles / 2 hours
Speed = 62.5 miles per hour
