Answer:
Step-by-step explanation:
Let x be the speed of first ferry.
Then the speed of second slower ferry is x-5 (since 5 miles per hour slower)
Time taken by first ferry = distance/speed = 
Time taken by second ferry = 
Since second ferry starts one hour early, difference in times is 1 hour.
Speed cannot be negative.
Hence answer is speed of the first ferry = 18.5 mph
and second ferry i.e. slower ferry is = 13.5 mph
Answer:
x ≈ 15.9
Step-by-step explanation:
a straight line is equal to 180 degrees
so we now know that 9x + 8 + 29 = 180
combine like terms 9x + 37 = 180
now subtract 37 from both sides 9x = 143
now divide both sides by the value of 9 x ≈ 15.9
Answer:
Gold : total
35 : 103
Step-by-step explanation:
USA gold = 35
Total usa = 103
Gold : total
35 : 103
Answer:
z = 156
Step-by-step explanation:
y² = 65²-25² = 4225 - 625 = 3600
(x+25)²-65² = z²
x²+50x+625-4225 = z²
x²+50x-3600 = z² ....(1)
x²+60² = z²
x²+3600 = z² ....(2)
(1)-(2): 50x - 7200 = 0
50x = 7200
x = 144
check: x² + y² = z² 144² + 60² = 24336 = z² z = 156
(25+144)²-65² = z² = 28561 - 4225 = 24336 z = 156
