Question

Jamie is having to buy a new phone, which costs $258. she has $16 towards this purchase and is saving $12 each week. express how many weeks she needs to save in the form of an equation from below:

A) 16 + 12w +258
B) 12w - 16 +258
C) 12w = 258 - 16
D) 258 = 16 + 12w

Answer 1

To express how many weeks Jamie needs to save to buy a new phone, the equation is 12w = 258 - 16. Jamie needs to save for approximately 20.17 weeks (or 21 weeks if rounded up) to buy a new phone.

Step-by-step explanation:

The correct equation to express how many weeks Jamie needs to save in order to buy a new phone is C) 12w = 258 - 16.

1. First, we need to set up the equation by setting the total amount she needs to save to the cost of the phone minus the amount she already has: $258 - $16 = $242.
2. Next, we set up the equation by equating the amount she saves each week (12w) to the remaining amount she needs to save ($242): 12w = 242.
3. We simplify the equation by dividing both sides by 12 to solve for w: w = 242 ÷ 12 = 20.17 (rounded to 2 decimal places).

Therefore, Jamie needs to save for approximately 20.17 weeks (or 21 weeks if rounded up) in order to buy a new phone.