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Alenkasestr [34]

3 years ago

13

A linear model for the situation below passes through the origin. Find the missing value. Round to the nearest tenth if necessar

y. 47.5 min to jog 5 mi ___ min to jog 11 mi

1 answer:

KonstantinChe [14]3 years ago

8 0

If missing time is x we have the equation

5 / 11 = 47.5 / x

5x = 522.5

x = 104.5 minutes

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From the text of the task:

$\left \{ {{\frac{x}{y}=\frac{5}{7}} \atop {x+y=48 \rightarrow x=48-y}} \right.$

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$\frac{48-y}{y}=\frac{5}{7}\\
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