A coal car on a train weighs 30 tons plus 1 ton per cubic yard of coal x that it carries. The total weight of a coal car is: f(x
1 answer:
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Answer:
(-2, -4)
Step-by-step explanation:
Given:
The system of equations to solve is given as:
In order to solve this system of linear equations, we use substitution method.
In substitution method, we substitute the value of any one variable in the other equation.
So, we substitute the value of 'y' from first equation in the second equation.
This gives,
Dividing both sides by 3, we get:
Now,
Therefore, the solution is (-2, -4)
Answer:
$45.45
Step-by-step explanation:
Please find attached an image of the shoe that was used in answering this question
From the image, the price of the shoe is $59.95
Let x be the amount you had with you
The equation that would be used to solve this question is :
(x + 20) - $59.5 = $5.50
Solve for x
x = $45.45
