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:
2, 3
Step-by-step explanation:
If the first integer is x, then the second is x+1. The given relation is ...
x +3(x+1) = 11
4x = 8 . . . . . . . . subtract 3
x = 2 . . . . . . . divide by 4
The integers are 2 and 3.
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<em>Check</em>
2 + 3(3) = 2+9 = 11
First, I would write the problem vertically because it just helps me better.
7x+2y=10
-7x+1y=-16
Then, I would add downwards.
7x+2y=10
+ -7x+1y=-16
-------------------
0x+3y=-6
Now, divide 3 from both sides.
3y=-6
--- ---
3 3
y=-2
Now, plug in -2 for y in any equation to get x.
7x+2(-2)=10
Combine like terms
7x-4=10
Add 4 to both sides
7x-4=10
+4 +4
-------------
7x=14
Divide each side by 7.
7x=14
---- ---
7 7
x=2
So your solution is
(2,-2)
To check the solution, plug in the x and y values in both equations.
7(2)+2(-2)=10
14-4=10
10=10
-7(2)-2=(-16)
-14-2=-16
-16=-16
Therefore, the solution works.
<u>You must always plug in the x and y values into both equations to check the solution because sometimes the solution will work for one and not the other.</u>
The solution must work to both equations in other for it to be right.
The Answer Is A! The person is giving a response back
Answer:Therefore, the relationship will be of the form, y = mx + b, or in this case, d = (max distance / max time)t + 0.
Step-by-step explanation:
