Lailah earns $9 per week working at the aquarium. Write and solve an inequality that can be used to find how many hours she must work in a week to earn at least $135.

Respuesta :

Answer:

$9 per hour (not week)

9x > or = 135

x > or = 45 hours she must work

Step-by-step explanation:

Answer: she must work for at least 15 hours in a week to earn at least $135

Step-by-step explanation:

Let x represent the number of hours that Lailah must work in a week to earn at least $135.

Lailah earns $9 per week working at the aquarium. This means that in a week in which she worked for x hours, the total amount of money that she would earn is 9x

Therefore, the inequality that can be used to find how many hours she must work in a week to earn at least $135 would be

9x ≥ 135

x ≥ 135/9

x ≥ 15