Caleb cut a rope into 4 pieces. The lengths of the pieces of rope are 5 2/8 inches, 7 7/8 inches, 4 1/8 inches, and 3 3/8 inches. Which choice is the closest estimate of the length of the original rope? A. 1 foot 7 inches B 1 foot 9 inches C. 1 foot 11 inches D. 2 feet 2 inches

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SOLUTION:

Step 1:

In this question, we are given the following:

Caleb cut a rope into 4 pieces.

The lengths of the pieces of rope are 5 2/8 inches, 7 7/8 inches, 4 1/8 inches, and 3 3/8 inches.

Which choice is the closest estimate of the length of the original rope?

A. 1 foot 7 inches B 1 foot 9 inches C. 1 foot 11 inches D. 2 feet 2 inches

Step 2:

The details of the solution are as follows:

We need to add up the individual pieces of rope:

[tex]\begin{gathered} 5\frac{2}{8}\text{ inches + 7}\frac{7}{8}\text{ inches + 4}\frac{1}{8}\text{ inches + 3}\frac{3}{8}\text{ inches = 20}\frac{5}{8}\text{ inches} \\ \end{gathered}[/tex]

Next:

Converting

[tex]20\frac{5}{8}\text{ inches to feet, we have that:}[/tex][tex]\begin{gathered} 1\text{ inch = 0.0833333 foot} \\ 20\frac{5}{8}\text{ inches = 20}\frac{5}{8}\text{ x 0.0833333 = 1.718749313 foot \lparen1 feet 9 inches \rparen} \\ \approx\text{ 1 foot 9 inches \lparen OPTION B \rparen} \end{gathered}[/tex]

CONCLUSION:

The final answer is:

1 foot 7 inches ( OPTION B )



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