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Mathematics 14 Online
OpenStudy (anonymous):

PLEASE HELP ME

OpenStudy (anonymous):

OpenStudy (anonymous):

@sammixboo @Princer_Jones @mathmath333

OpenStudy (anonymous):

total amount equation

OpenStudy (anonymous):

cost concentration area and weight

OpenStudy (mathmath333):

\(\large\tt \begin{align} \color{black}{scented~candles\implies a\\ small~candles\implies b\\ large~candles\implies c\\~\\~\\ \\a+b+c=15\\ a=2b\\ 4a+1b+2c=42 }\end{align}\)

OpenStudy (mathmath333):

now solve foe \(\Large a,b ~~and~~c\)

OpenStudy (anonymous):

4 ( 2y) + 1 * y + 2 (15-3y)=42 how do i solve from here?

OpenStudy (anonymous):

y=4

OpenStudy (anonymous):

= 12 – 12 =3

OpenStudy (mathmath333):

\(\large\tt \begin{align} \color{black}{a+b+c=15\\ a=2b\\ 4a+b+2c=42\\~\\~\\~\\ 2b+b+c=15\\ 3b+c=15----1\\~\\~\\~\\ 4(2b)+b+2c=42\\ 9b+2c=42-----2\\~\\~\\~\\ from ~~1\\ 3b+c=15\\ -9b-3c=-45----3\\~\\~\\~\\ \text{from adding 3 and 2}\\ c=3\\ 3b+3=15----1\\ b=4\\ a=8 }\end{align}\)

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