Answer:
Step-by-step explanation:
Given that
2x+3y=13. Equation 1
x=2+3y. Equation 2
Using substitution method
Substitute x in equation 2 to equation 1
2x+3y=13
2(2+3y)+3y=13
4+6y+3y=13
4+9y=13
9y=13-4
9y=9
y=9/9
y=1.
To get x, substitute y=1 into equation 2
x=2+3y
x=2+3(1)
x=2+3
x=5
Then, x=5 and y=1 is the solution to the simultaneous equation
The answer is 4/5, you can draw a model and compare and see or the easiest way is to write the fraction like this. And multiply cross way, 3 x 4 = 12 and 5 x 2 = 10, so write 12 on top of 4/5 and 10 on top of 2/5. So as you can tell, 4/5 is bigger than 2/3. Sorry for long explanation, it would be easier if I talked to you.
2 4
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3 5
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Answer:
Step-by-step explanation:
You can multiply and put everything under one square root to get . You can take out from the square root to get
The mileage is the independent variable. You can control it. The gasoline remaining DEPENDS ON the number of miles different. That's why it's called the dependent variable. It's change depends on the change in the independent variable