Answer:the distance between the two cities is 100 miles
Step-by-step explanation:
Let x represent the distance between New York and Philadelphia.
Let t represent the time it takes to travel from New York to Philadelphia at 50 mph
Distance speed × time
time = distance/speed
To travel from New York to Philadelphia at 50 mph,
x = 50t
it takes 20 more minutes than to travel the same distance at 60 mph. Converting 20 minutes to hours, it becomes 20/60 = 1/3 hours. This means that
x = 60(t - 1/3) = 60t - 20
Since the distance is the same,
60t - 20 = 50t.
60t - 50t = 20
10t = 20
t = 20/10 = 2
Therefore
x = 50t = 50 × 2 = 100 miles
Answer: 33.3333333...%
Step-by-step explanation: 200/600=1/3
1/3 =33.3333333...%
So b/10 has to be -1, that means b is -10
Answer:
-3/4
Step-by-step explanation:
Write in y = mx + b form
4y = -3x + 8
y = -3/4x + 2
Find the m value.
m = -3/4
Answer:
slope = - 14
Step-by-step explanation:
Calculate the slope m using the slope formula
m = 
with (x₁, y₁ ) = (- 4, 8) and (x₂, y₂ ) = (- 3, - 6)
m = 
= 
= - 14
