Nina is saving up to purchase a new phone. The new phone costs $499. Nina received $100 for her birthday and plans to put that towards the new phone. To save the rest of the money, Nina plans to put aside $50 per week until she has saved enough to purchase the phone . Write an equation that represents Nina's savings towards earning her new phone . Use w to represent the number of weeks. (1 point) 50w = 499; 50w + 100 = 499; 50w - 100 = 499; 100w + 50 = 499

1 answer

To represent Nina's savings towards earning her new phone, we need to account for the initial $100 she received and the $50 she saves each week until she reaches the total cost of the phone, which is $499.

The correct equation would be:

\[ 50w + 100 = 499 \]

This equation indicates that the total amount saved (which is $50 for each week \( w \) plus the initial $100) equals the total cost of the phone ($499).

So the correct answer is: 50w + 100 = 499.