Answer:
49 bracelets
Explanation:
Let the number of bracelets that can be made be x.
First, let us convert 3.5 hours into minutes.
3.5 * 60 = 210 minutes
Accordingly,
Time (min) Number of bracelets
30 ⇒ 7
210 ⇒ x
Now, we can make an expression like this using cross multiplication.
30x = 7 × 210
30x = 1470
Divide both sides by 30.
x = 49