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Leviafan [203]
3 years ago
5

The following shows the process a student used to determine the number of yards in 3,218 meters. (1 mile = 1,609 meters) (1 mile

= 1,760 yards) Step 1: 1,609 meters is being multiplied by conversion factor 1 mile over 3,218 meters equals 0.5 mile Step 2: 0.5 mile is being multiplied by conversion factor 1760 yards over 1 mile equals 880 yards Step 3: 880 yards What was the error made in this conversion? The 1 mile and 3,218 meters in Step 1 should be switched. The 1,609 meters and the 3,218 meters in Step 1 should be switched. The conversion factor should be added in Step 2 instead of being multiplied. The conversion factor should be divided in Step 2 instead of being multiplied.
Mathematics
2 answers:
Lana71 [14]3 years ago
7 0

Answer:

2341 yards

Step-by-step explanation:

pshichka [43]3 years ago
3 0
2341 yards is the answer
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Step-by-step explanation:

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x_j(t) = 7 + 2.5 t

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7 is the initial position of Jeff when his sister sarts chasing him

2.5 is Jeff's velocity (in miles/hour), so its position increases by 2.5 miles for each hour

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x_s(t) = 6t

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The sister catches up Jeff when the two positions are equal, so

x_j(t) = x_s(t)\\7+2.5t=6t

And solving for t,

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3 years ago
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