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Basile [38]
3 years ago
8

A student studied for 1 hour and earned a 50% on her test. If she had studied for 2

Mathematics
1 answer:
marshall27 [118]3 years ago
3 0

You have to double 1 and 50 to get 2 and 100

1:50 = 2:100

1x2=2

50x2=100

So the statement, <em>if she studied for 2 hours, she would have gotten 100%</em>,  makes sense

Hope this helps!

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\begin{gathered} 4x+3y=5 \\ 4\cdot(4y+6)+3y=5 \\ 16y+24+3y=5 \\ 16y+3y=5-24 \\ 19y=-19 \\ y=-\frac{19}{19}=-1 \end{gathered}

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This question is very oddly worded.  The domain is the set of x-values, but this is a set of (x,y) ordered pairs.

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