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just olya [345]
3 years ago
14

Joan has 294 black marbles. Joan has 42 times more black marbles than Dan. How many black marbles does Joan has?

Mathematics
1 answer:
lara [203]3 years ago
5 0
Joan has 294 marbles
dan has 7 marbles
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Answer:

Step-by-step explanation:

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\textit{horizontal parabola vertex form with focus point distance} \\\\ 4p(x- h)=(y- k)^2 \qquad \begin{cases} \stackrel{vertex}{(h,k)}\qquad \stackrel{focus~point}{(h+p,k)}\qquad \stackrel{directrix}{x=h-p}\\\\ p=\textit{distance from vertex to }\\ \qquad \textit{ focus or directrix}\\\\ \stackrel{"p"~is~negative}{op ens~\supset}\qquad \stackrel{"p"~is~positive}{op ens~\subset} \end{cases} \\\\[-0.35em] ~\dotfill

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6 0
1 year ago
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