it would be the third one, 2/3
(a+a+6)*2.5=345
2a+6=138
a=132/2
a=66 mph
a+6=66+6=72 mph
Speed of the first car is 72 mph
50 mph for 3 hours = 150 miles
70mph for 2.5 hours = 140 + 35 = 175
175 miles - 150 miles = 25 miles
Answer:
Slope =1
Step-by-step explanation:
(2-1)/(3-2)= 1/1= 1
Answer:
The answer is 4x
Step-by-step explanation: This is because all of the domains are usually in the dominant variable which in most cases is x