Sam rode his bike 7 and one-half miles on Monday, 4 miles on Tuesday, and 6 and one-third miles on Wednesday. How many miles did he ride altogether? A. 17 and two-fifths
B. 17 and three-fifths
C. 17 and one-sixth
D. 17 and five-sixths

17 and 5/6

Step-by-step explanation:

   7 1/2 mi. + 4 mi. + 6 1/3 mi.

=   7 1/2 mi. + 10 1/3 mi.

1/2 = 6/12

1/3 = 4/12

7 6/12 mi. + 10 4/12 mi.

= 17 10/12 mi.

= 17 5/6 mi.

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step-by-step explanation:

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ca = ec

cpctc makes it so that corresponding parts of the triangle you proved to be equal are equal, the other options aren't part of the part of the triangles you proved to be equal.