I need to know the Salary and explain how you got it.

Mathematics

1 answer:

RideAnS [48]3 years ago

8 0

WEEKLY Earning Full time = 40 h x $15 = $600/week
Over time = 3 h 25 min or 3h + 25/60 h
WEEKLY Earning Over time = (3 h)x $30 + (25/60) x $30 = $115

TOTAL WEEKLY INCLUDING OVERTIME: = $715
TOTAL SEMI MONTHLY INCLUDING OVERTIME =$715 X2 = $1,430
BIWEEKLY = SEMI MONTHLY = $1,430
TOTAL MONTHLY INCLUDING OVERTIME =$715 x 4 = $2,860

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$\bf \begin{array}{lcccl} &\stackrel{solution}{quantity}&\stackrel{\textit{\% of }}{amount}&\stackrel{\textit{mL of }}{amount}\\ \cline{2-4}&\\ \textit{on hand}&330&0.8&264\\ \textit{pure water}&x&0&0x\\ \cline{2-4}&\\ mixture&y&0.55&0.55y \end{array}~\hfill \begin{cases} 330+x=\boxed{y}\\\\ 264+0x = 0.55y \end{cases}$

$\bf \stackrel{\textit{substituting on the 2nd equation}}{264+0x=0.55\left( \boxed{330+x} \right)}\implies 264=181.5+0.55x\implies 82.5=0.555x \\\\\\ \cfrac{82.5}{0.55}=x\implies 150=x$