keisha is babysitting at 8$ per hour to earn money for a car. So far she has saved $1300. The car that keisha wants to buy costs at least $5440. How many hours does Keisha need to babysit to earn enough to buy the car
Set up the Earning function E(h) where h is the number of hours Keisha needs to babysit:
E(h) = 8h + 1300
The question asks for h when E(h) is at least 5440. The phrase at least means an inequality, which is greater than or equal to. So we have:
8h + 1300 >= 5440
To solve this inequality, we type it in our search engine and we get:
h >= 517.5
Set up the Earning function E(h) where h is the number of hours Keisha needs to babysit:
E(h) = 8h + 1300
The question asks for h when E(h) is at least 5440. The phrase at least means an inequality, which is greater than or equal to. So we have:
8h + 1300 >= 5440
To solve this inequality, we type it in our search engine and we get:
h >= 517.5