]Which choice shows this equation written in slope-intercept form? –7x + 4y = –12
0%5Cfrac%7B4%7D%7B5%7D%20x%2B12%20" id="TexFormula1" title="A) y= \frac{4}{5} x+12 " alt="A) y= \frac{4}{5} x+12 " align="absmiddle" class="latex-formula">
1 answer:
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Answer:
1) 62.5
2) 50
3) 75
4) 100
Step-by-step explanation:
1)
Because it has a half-life of 25 days, half of it will decay after 25 days.
After days, there will be
of it left.
So, .
2)
Because it has a half-life of 25 days, half of it will decay after 25 days.
After days, there will be
of it left.
So,
3)
Because it has a half-life of 25 days, half of it will decay after 25 days.
After days, there will be
of it left.
So, .
4)
The only answer left is grams. You can solve it the same way you solved the previous steps.