Sandra rode her bike 5 times as many miles as Barbara. If b , the distance Barbara rode, equals 3 point 4 miles, what is the correct expression and distance Sandra rode?
Answer
A
5 b ; when b is equal to 3 point 4 the distance Sandra rode is 8 point 4 miles.
B
b plus 5 ; when b is equal to 3 point 4 the distance Sandra rode is 8 point 4 miles.
C
b plus 5 ; when b is equal to 3 point 4 the distance Sandra rode is 17 miles.
D
5 b ; when b is equal to 3 point 4 the distance Sandra rode is 17 miles.
Explanation
“5 times as many miles” means multiply Barbara’s distance by 5, so Sandra’s distance is 5b. Substituting b = 3.4 gives 5 × 3.4 = 17 miles. Therefore, the correct choice is 5b and 17 miles.
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