Y=x+1
3x+y=21
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-x+y=1
3x+y=21
First do this. Change one (or both) of the equations so that the x and y are on one side, and the number is on the other. Make sure either the x or the y is the same in both equations (in this case, y) and then take one away from the other. The y will cancel out so you can work out x.
3x+y=21 -
-x+y=1
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4x = 20
x = 5
Then add the x into one of the two equations to find out y.
3x + y = 21
(3*5) + y = 21
15 + y = 21
y = 6
To check, put both x any y into the other equation.
-5 + 6 = 1
If the answer is correct, you have correctly solved the equations.
x = 5
y = 6
:D
f(3)=10 I think this is it
Y - 3 = 12 (x - 4)
y - 3 = 12x - 48
y = 12x - 45 is your answer
(edit)
y - 3 = 1/2 (x - 4)
y - 3 = 1/2x - 2
y = 1/2x + 1 is your answer
The unit rate that the turtle is crawling is: (1/23)/(5/6) = (1/23)*(6/5) = 6/115 miles/hour.
Answer:
he can row 2 miles in an hour
Step-by-step explanation:
When canoeing it takes about 20-30 minutes to row atleast 1 hour there are 2 sets of 30 minutes in an hour meaning he can row 2 miles