Question

5. Julie can make 12 bracelets in 5 hours. Write an equation that relates the hours

X to the number of bracelets, y. At this rate, how many bracelets will she make in
20 hours?

Answer 1

y = 12/5x, 48 bracelets

Explanation:

If y is the number of bracelets she makes, and x is the number of hours, then the equation would be:

y = 12/5x

This is because if she makes 12 bracelets every 5 hours, then the number she makes every hour would be 12/5, or 2.4.

Now that we have our equation, we can simply substitute 20 into our x value to find the number she makes in that time. Hence:
y = 12/5(20)

y = 48 bracelets

Since 20 is a group of 5 (containing 4 5s) we can also check our answer by multiplying 12 by 4, which also gives 48.

Hope that helps!