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Paha777 [63]
3 years ago
14

You go the grocery and purchase 13 boxes of chocolates. You also buy a game that costs $54.27. When you check out, the total cos

t is $98.34. How much does one box of chocolates cost?
Mathematics
1 answer:
Nikitich [7]3 years ago
6 0

98.34-54.27= 14.07

14.07÷13

Answer=3.39


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the line joining A(a, 3) to B(2 -3) is perpendicular to the line joining C(10,1) to B. The value of a is?
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Well, first off, let's find what is the slope of BC

\bf \begin{array}{lllll}
&x_1&y_1&x_2&y_2\\
%   (a,b)
B&({{ 2}}\quad ,&{{ -3}})\quad 
%   (c,d)
C&({{ 10}}\quad ,&{{ 1}})
\end{array}
\\\\\\
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\\\\\\
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\bf \textit{perpendicular, negative-reciprocal slope for slope}\quad \cfrac{1}{2}\\\\
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\bf \begin{array}{lllll}
&x_1&y_1&x_2&y_2\\
%   (a,b)
A&({{ a}}\quad ,&{{ 3}})\quad 
%   (c,d)
B&({{ 2}}\quad ,&{{ -3}})
\end{array}
\\\\\\
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\\\\\\
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\\\\\\
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