Elijah opens a savings account with 15 dollars he got for his graduation. Every month, Elijah adds 30 dollars to the account. Represent this situation with a table, a graph, and an equation.

Question

Let’s start by representing this situation with a table. Start by finding the amount in the savings account after 0, 1, 2, and 3 months.
Time in months Dollars in the savings account
0
1
2
3

Answer 1

Let's calculate the amount in Elijah's savings account after 0, 1, 2, and 3 months.

• Initial amount: $15
• Monthly addition: $30

Now we can fill out the table:

1. At 0 months: \[ \text{Total} = 15 \text{ dollars} \]

2. At 1 month: \[ \text{Total} = 15 + 30 \times 1 = 15 + 30 = 45 \text{ dollars} \]

3. At 2 months: \[ \text{Total} = 15 + 30 \times 2 = 15 + 60 = 75 \text{ dollars} \]

4. At 3 months: \[ \text{Total} = 15 + 30 \times 3 = 15 + 90 = 105 \text{ dollars} \]

Now, we can fill in the table:

| Time in months | Dollars in the savings account | |----------------|-------------------------------| | 0 | 15 | | 1 | 45 | | 2 | 75 | | 3 | 105 |

Summary

• After 0 months, Elijah has $15.
• After 1 month, Elijah has $45.
• After 2 months, Elijah has $75.
• After 3 months, Elijah has $105.