Ronaldo receives a gift card to a deli with a balance of $80. He uses it once a week to buy his favorite sandwich for $8.00. The balance on the gift card, b, after w weeks can be represented by the equation b=80−8w.

Question

Complete the table to find the balance on the gift card after different times in weeks. You can solve on paper and then enter your answers on Zearn.
w, the number of weeks
Input Output Arrow
80−8w
Input Output Arrow
b, the gift card balance
b=80−8w

w, number of weeks b, gift card balance
3
5
8

Answer 1

To find the balance on the gift card after different numbers of weeks, we will use the equation provided:

\[ b = 80 - 8w \]

Now let's calculate the balance for each given value of \( w \):

1. For \( w = 3 \): \[ b = 80 - 8(3) = 80 - 24 = 56 \]

2. For \( w = 5 \): \[ b = 80 - 8(5) = 80 - 40 = 40 \]

3. For \( w = 8 \): \[ b = 80 - 8(8) = 80 - 64 = 16 \]

Now, we can fill in the table:

| w (number of weeks) | b (gift card balance) | |---------------------|-----------------------| | 3 | 56 | | 5 | 40 | | 8 | 16 |

So the completed table is:

• For \( w = 3 \), \( b = 56 \)
• For \( w = 5 \), \( b = 40 \)
• For \( w = 8 \), \( b = 16 \)