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zhuklara [117]
2 years ago
15

CAN SOMEBODY PLEASE HELP WITH THIS ITS HARD FOR ME PLEASEEEE!!

Mathematics
1 answer:
zmey [24]2 years ago
7 0
The answer is: x = -1, y = +4
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6. Jessica bought a new suitcase. The sales tax was 4.5%. If the amount of
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Answer:

$ 154

Step-by-step explanation

Let the value of suitcase=x

x × 4.5% = 6.93 (converted the question into equation)

x × \frac{4.5}{100} = 6.93 (converted the percentage into fraction)

x = 6.93 x \frac{100}{4.5} (took reciprocal of 4.5/100 after moving it to the other side of the equation)

x = \frac{693}{4.5} (multiplied the values)

x = 154 $ (simplified the fraction)

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3 years ago
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Trigonometry
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Answer:

9.7

Step-by-step explanation:

tan=opposite/adjacent

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tan 43=9/x

x tan 43=9

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x=9.7

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insens350 [35]

Answer:

c on edge YW

Step-by-step explanation:

8 0
2 years ago
Which of the following numbers has a prime factorization of 3 x 3 x 3?
iogann1982 [59]
The answer is d 3x3 is 9...9x3 equal 27
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2 years ago
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It costs $107 for 10 students and $137 for 15 students. How much does it cost for 12 students?
Anestetic [448]
\bf \begin{array}{ccccccccc}
&&\stackrel{students}{x_1}&&\stackrel{price}{y_1}&&\stackrel{students}{x_2}&&\stackrel{price}{y_2}\\
%  (a,b)
&&(~{{ 10}} &,&{{ 107}}~) 
%  (c,d)
&&(~{{ 15}} &,&{{ 137}}~)
\end{array}
\\\\\\
% slope  = m
slope = {{ m}}\implies 
\cfrac{\stackrel{rise}{{{ y_2}}-{{ y_1}}}}{\stackrel{run}{{{ x_2}}-{{ x_1}}}}\implies \cfrac{137-107}{15-10}\implies \cfrac{30}{5}\implies \cfrac{6}{1}\implies 6

\bf \stackrel{\textit{point-slope form}}{y-{{ y_1}}={{ m}}(x-{{ x_1}})}\implies y-107=6(x-10)
\\\\\\
y-107=6x-60
\implies 
y=6x+47\\\\
-------------------------------\\\\
\textit{how much will it be for }\stackrel{x}{12~students?}\qquad y=6(12)+47
7 0
2 years ago
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