2 2/3 = 8/3
8/3= 40/15
13/15 - 40/15 = -27/15 = -1 12/15
Answer:
4 hours
Step-by-step explanation:
The general formula for distance, rate and time is:
d = rt, where distance is the product of rate multiplied by time
Given that one train is moving at a rate of 70 mph and one is moving at a rate of 62 mph in the opposite direction, the combined distance over time is equal to 528 miles. Using the variable 't' for time:
70t + 62t = 528
Combine like terms: 132t = 528
Divide both sides by 132: 132t/132 = 528/132 or t = 4 hours
Answer: C
Step-by-step explanation:
Use Desmos | Graphing Calculator <33 This app/website works wonders fro math
The answer is 14.
(7x+25)+(3x+15)=180
x=14
