Let x be the number of days Lily needs to reach her goal.
Lily earns $10 per day, so she will earn 10x dollars babysitting her little sister.
Including the $60 her mom gave her, Lily will have a total of 10x + 60 dollars.
According to the problem, this total should be at least $400, so we can write the inequality:
10x + 60 ≥ 400
Subtracting 60 from both sides of the inequality, we get:
10x ≥ 340
Dividing both sides of the inequality by 10, we get:
x ≥ 34
Therefore, Lily needs at least 34 days to reach her goal of $400.
5. Lily needs at least $400 to buy a phone. Her mom gave her $60 and she earns $10 a day babysitting her little sister. How many days to reach her goal? Write and solve the inequality. show your work
1 answer