Question

Rose blew h bubbles in two hours. Which algebraic expressions shows how many bubbles she blew in one minute?

Answer 1

h / 120

Explanation:

2 hours equals 120 minutes.

So h bubbles in 120 minutes is h/120 per minute.

Verification: suppose she blew 240 bubbles in two hours; this would be 240/120 = 2 per minute. That makes 120 per hour and, as expected, 240 in two hours.

Answer 2

I believe it is 2 / h = the amount she blew in 1 minute. Hope this helps