Answer:
1.75 liters for each car.
Step-by-step explanation:
Divide:
*7 / 4 = 1.75.
Check:
*1.75 x 4 = 7.
The simplification of rational expression (x²+6x-7)/(x²+9x+14) gives
(x-1)/(x+2).
<h3>What is factorisation?</h3>
A polynomial or integer is simply resolved into components that, when multiplied together, produce the original or starting polynomial or integer.
- The factorization method allows us to simplify any algebraic and quadratic equation by representing the equations as that of the product or factors rather than by expanding the brackets.
- Any equation can have an integer, a variable, or the algebraic expression itself as a factor.
The given expression is -
= (x²+6x-7)/(x²+9x+14)
Factorising both numerator and denominator;
= {x+7x-x-7} / {x+7x+2x+14}
= {x(x+7)-(x+7)} / {x(x+7)+2(x+7)}
= {(x+7)(x-1)} / {(x+7)(x+2)}
Cancel the (x+7),
= (x-1)/(x+2)
Therefore, the simplification of the given equation is (x-1)/(x+2).
To know more about factorisation, here
brainly.com/question/11579257
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Answer:
Hi! The other answer is not correct to your question
The answer to your question is n= 
Step-by-step explanation:
Solve the rational equation by combining expressions and isolating the variable n
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Hope this helps!!
The linear equation y = -x - 2 and y = 2x + 13 form the solution (-5, 3)
<h3>
Linear equation</h3>
A linear equation is in the form:
y = mx + b
where y, x are variables, m is the rate of change and b is the y intercept.
Given the coordinate (-5, 3) as a solution.
The linear equation y = -x - 2 satisfies this this equation because 3 = -(-5) -2
Also, the linear equation y = 2x + 13 satisfies this this equation because 3 = 2(-5) + 14
Find out more on Linear equation at: brainly.com/question/14323743
<span> the original number is 140.</span>
