Answer:
4.9 hours = 4 hours 54 minutes
Step-by-step explanation:
speed = distance/time
time * speed = distance
time = distance/speed
time = (284 miles)/(58 mph) = 4.9 hours
4.9 hours - 4 hours = 0.9 hours
0.9 hours * (60 minutes)/(1 hour) = 54 minutes
x = 2y - 7
x + y = 47
substitute x
2y - 7 + y = 47
3y = 54
y = 18
x = 2x18 - 7
x = 29
Answer: (-9, -3)
A = (-3, -1)
A' = (-3, -1)*3 = (-9, -3)
They help you see progressions but sometimes graphs can be manipulated to convey specific data and hide others like using methods called cherry picking, changing x and y axis and etc.
