64x+80 (42-x)=2880
Solve for x
X=30 coach fare
42-30=12 First-class fare
Answer: 20 hours
Step-by-step explanation:
Since, One watch is slow and loses two minutes every hour
⇒ 1 hour of slow watch = 62 minutes
And, the other one is fast and gains one minute every hour.
⇒ 1 hour of fast watch = 59 minutes,
Hence, in 1 hour, the difference between slow and fast watch in 1 hour = 62 - 59 = 3 minutes.
⇒ The between slow and fast watch in 20 hours = 20 × 3 = 60 minutes or 1 hour.
Hence, after 20 hours the difference between the watches will be 1 hours.
Answer:
2(1)²−1= 1
2(2)²−1= 7
2(3)²−1= 17
2(4)²−1= 31
2(5)²−1= 49
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Answer:
2700 degrees.
Step-by-step explanation:
The external angles add up to 360 degrees
So 1 external angle in a regular 17-gon = 360/17
= 21.176 degrees
The internal angle = 180 - 21.176
= 158.824 degrees
Sum of internal angles = 158.824 * 17
= 2700 degrees.
Answer:
Part a)
Part b)
Step-by-step explanation:
Part a) Set up a proportion to show the relationship between the distance in miles and the size of the map
we know that
The scale on a map is equal to
That means
1 inch on a map represent a 15 miles in real life
Part b) How far apart are the cities in real life?
Let
x -----> the distance in real life
using proportion