Question

Sandra rode her bike 5 times as many miles as Barbara. If b, the distance Barbara rode, equals 3.4 miles, what is the correct expression and distance Sandra rode?

a) b+5; when b=3.4, the distance Sandra rode is 17 miles.

b) 5b; when b=3.4, the distance Sandra rode is 17 miles.

c) 5b; when b=3.4, the distance Sandra rode is 8.4 miles.

d) b+5; when b=3.4, the distance Sandra rode is 8.4 miles.

Answer 1

Well, Sandra would've had to ride her bike 17 miles, so the answer is b because when a number is next to a letter, you have to times it. So, 5 times by b equals 17, so that is the answer. Hope it helps!

Answer 2

Option b is correct

5b; when b = 3.4 miles , the distance Sandra rode is 17 miles

Explanation:

Here, b represents the distance Barbara rode.

As per the statement:

Sandra rode her bike 5 times as many miles as Barbara.

⇒
`\text{Distance Sandra rode} = 5b` miles ....[1]

It is also given that:

the distance Barbara rode, equals 3.4 miles

⇒
`b = 3.4` miles

Substitute in [1] we have;

`\text{Distance Sandra rode} = 5(3.4)=17` miles

Therefore, the correct expression and distance Sandra rode is

5b ; when b = 3.4 miles , the distance Sandra rode is 17 miles