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stepladder [879]
3 years ago
14

At 7:00 a.m the temperature was 8 C what was the temperature at midnight if the temp was 10 lower?

Mathematics
1 answer:
pantera1 [17]3 years ago
8 0
8-10= -2°C at midnight
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Lucy have $6400 if she invests<br> $1200 at 15% interest<br> compounded quarterly?
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Answer:

  11.4 years

Step-by-step explanation:

We assume you want to know the time it takes for Lucy's investment of $1200 to have a value of $6400. The compound interest formula is good for finding that.

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for principal P invested at rate r per year for t years, compounded n times per year. We want to find t such that ...

  6400 = 1200(1 +0.15/4)^(4t)

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It will take about 11.4 years for Lucy's investment value to be $6400.

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3 years ago
The length of a rectangle is three times its width. The perimeter of the rectangle is at most 112cm. Which inequality models the
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Answer: w ≤ 14 cm , L ≤ 42 cm

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Step-by-step explanation:

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