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Taya2010 [7]
3 years ago
15

When they go to the movies the Herandez family uses the formula 4,50C + 9,75A=T determine the total cost of their evening

Mathematics
1 answer:
r-ruslan [8.4K]3 years ago
8 0
Their total cost of their evening is $14.15
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Which method correctly solves the equation using the multiplication property of equality and the reciprocal of One-third? One-th
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Answer:

Step-by-step explanation:

Given the equation \frac{1}{3}(x+9) = -12

Step 1;

Expand the bracket at the right hand side of the equation to have:

\frac{1}{3}x +\frac{1}{3}(9) = -12\\\frac{1}{3}x+3=-12\\subtracting\ 3\ from\ both\ sides\\\frac{1}{3}x+3-3=-12-3\\\frac{1}{3}x=-15\\

Taking the reciprocal of both sides:

\frac{3}{x} = \frac{-1}{15} \\ cross\ multiplying\\-x =45\\x=-45

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