47 Exercise Answers: Module 10 — Technical Mathematics

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Exercise Answers: Module 10

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Ratios, Rates, Proportions

$\frac{3}{8}$
$\frac{105\text{ mi}}{2\text{ hr}}$
$\frac{52.5\text{ mi}}{1\text{ hr}}$ or $52.5$ miles per hour
$ $0.199$ /oz, or around $20$ cents per ounce
$ $0.249$ /oz, or around $25$ cents per ounce
the $18$ -ounce box has the lower unit price
$\frac{3}{4}=\frac{3}{4}$ ; true
$\frac{2}{3} \neq \frac{4}{5}$ ; false
$168 = 168$ ; true
$200 \neq 240$ ; false
$70 \neq 60$ ; false
$20 = 20$ ; true
$x = 12$
$n = 5$
$k = 4$
$w = 10$
$x = 10.4$
$m = 2.0$
$256$ miles
$20$ hours
$190$ pixels wide

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