Answer:
i would divide to 6 of each side of the equation which leadss tyo x+y=4
and just draw coordinate system to see all possible answers
Step-by-step explanation:
there are endless of answers unless there is a limiter
The first one because for every output there is only 1 input
1.92*9=17.28
The total would be $17.28
Answer:
5. 66%
Step-by-step explanation:
Sales tax = $19.80
Cost of item before sales tax = $330
Cost of item after sales tax = 19.80+19.80 + 19.80+330
= $349.80
Sales tax rate
19.80349.80×100%5.66%\begin{lgathered}\frac{19.80}{349.80} \times 100\% \\ 5.66\%\end{lgathered}
349.80
19.80
×100%
5.66%
So rate of sales tax is 5.66%
<h3>
Answer: 7/13</h3>
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Explanation:
We know that the marble selected is red, so we don't need to focus on the other colors.
7 red marbles are in urn B out of 2+7+4 = 13 total red marbles.
The probability the red marble came from urn B is therefore 7/13
