If Amanda has 129 assignments and 15 days to complete the assignments how many assignments does Amanda need to do each day?

1 Answer
lechugamaestro19
Mar 20, 2018

8.6 (or 9)

Explanation:

If Amanda does a certain amount of assignments each day, the total number of assignments she does will equal the number of days she has worked times the number of assignments per day. This can be represented in an equation.

#t\otal = days * assignments# or #t = d*a#.

We know the total and the number of days, so we can replace the variables (the unknowns) with our numbers.

#129 = 15 * a#

In order to find #a#, we need to get it by itself on one side. We can do this by dividing 129 by 15.

#129/15 = 8.6 = a#

#a# is #129/15#, which is 8.6, which rounds to 9. So Amanda will need to do 8.6 or 9 assignments per day.

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