Question

Laura received a $30.25 gift card for a photo center. She used it to buy prints that cost 10 cents each. The remaining balance, B (In dollars), on the card after buying x prints is given by the following.

B=30.25 -0.10% What is the remaining balance on the card if Laura bought 20 prints?
A) $28.25
B) $27.25
C) $29.25
D) $26.25

Answer 1

After buying 20 prints, the remaining balance on Laura's gift card is calculated using the equation B=30.25 - 0.10x. By substituting x with 20 and performing the calculation, the remaining balance is found to be $28.25.

Step-by-step explanation:

To find the remaining balance on Laura's gift card after purchasing 20 prints, we can use the given equation B=30.25 -0.10x, where B represents the remaining balance and x represents the number of prints purchased. Since each print costs 10 cents, or $0.10, and Laura bought 20 prints, we can substitute x with 20.

The equation with the known value of x becomes B=30.25 - (0.10 * 20). Calculating the multiplication part gives us 0.10 * 20 = $2.00. Now, we subtract $2.00 from $30.25 to get the remaining balance: B=30.25 - 2.00 = $28.25.

Thus, the remaining balance on the card after Laura bought 20 prints is $28.25, which corresponds to choice A.