How do you write the inequality for "Josephine sleeps more than 7 hours each night"?

1 Answer
Oct 9, 2015

Answer:

#t>7#
t is duration of Josephine's sleep each night. The unit is hours.

Explanation:

You are comparing two things. They are "how long Josephine sleeps" and "7 hours".

We don't know how long Josephine sleeps, so let's make this a variable called t. We don't have a number for this.

The relationship between the two things is "more". According to the sentence, Josephine's sleep duration (t) is "more" than 7 hours.

So the inequality is as follows:
variable, relation, the other thing you are comparing to.

t, more, 7

more is #># in math language. Let's use t for sleep duration.

Then we get #t>7# .