João comprou uma TV por R$ 2 400,00; um celular por R$ 1 325,00 e um tênis por R$ 130,00, qual o valor total da compra?
1 answer:
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Answer:
Step-by-step explanation:
A polynomial is given to us and we need to make the polynomial by its degree . Here the given polynomial is 3x² + 5x -3 .
So here we can see that the highest power of the variable in the given polynomial is 2 . So the polynomial is a quadratic polynomial .
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When we equate this quadratic polynomial with 0 , it becomes a quadratic equation.
That is ,
This is done in order to find the zeroes of the polynomial. The zeroes of the polynomial are the values for which the polynomial becomes 0 .
Answer:
Cost of adult ticket is $8 and Cost of children ticket is $5.
Step-by-step explanation:
Given:
Let the cost of each Adult ticket be 'x'.
Let the cost of each child ticket be 'y'.
Now Given:
The lee's spend $ 31 on movie tickets for 2 adults and 3 children.
Number of adult tickets = 2
Number of children ticket = 3
Total money spent = $31
So we can say that;
Total money spent is equal to sum Number of adult tickets multiplied by cost of each Adult ticket and sum Number of children tickets multiplied by cost of each child ticket.
framing in equation form we get;
Also Given:
The Smith's spent $ 26 on movie tickets for 2 adults and 2 children
Number of adult tickets = 2
Number of children ticket = 2
Total money spent = $26
So we can say that;
Total money spent is equal to sum Number of adult tickets multiplied by cost of each Adult ticket and sum Number of children tickets multiplied by cost of each child ticket.
framing in equation form we get;
Now Subtracting equation 2 from equation 1 we get;
Now substituting the value of y in equation 1 we get;
Hence Cost of adult ticket is $8 and Cost of children ticket is $5.