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slava [35]
3 years ago
9

Last year the 6th grade had 350 students. This year there are only 224 students. Which proportion could be used to calculate the

percent decrease in students?
Mathematics
1 answer:
KonstantinChe [14]3 years ago
7 0

Answer:

36%

Step-by-step explanation:

50-224=

126 / 350=

.36 x 100=

36%

hope this helps :)

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The value of a certain car decreases by 16% each year. What is the 1⁄2-life of the car?
svet-max [94.6K]

Answer:

The half life of the car is 3.98 years.

Step-by-step explanation:

The value of the car after t years is given by the following equation:

V(t) = V(0)(1-r)^{t}

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This means that r = 0.16

So

V(t) = V(0)(1-r)^{t}

V(t) = V(0)(1-0.16)^{t}

V(t) = V(0)(0.84)^{t}

What is the 1⁄2-life of the car?

This is t for which V(t) = 0.5V(0). So

V(t) = V(0)(0.84)^{t}

0.5V(0) = V(0)(0.84)^{t}

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\log{(0.84)^{t}} = \log{0.5}

t\log{0.84} = \log{0.5}

t = \frac{\log{0.5}}{\log{0.84}}

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Lawyers for each side of a case are questioning people who received a jury summons. What part of the trial process does this des
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The case is in the deliberation phase, and the jury selection will follow.

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