ara has a gift card for Six Town's Bakery and bought the following items.
6 muffins for $0.45 each
2 boxes of cookies for $2.70 each
1 coffee cake for $3.72
Sara estimates she has $8.00 left on her gift card. What assumption did Sara use to make her estimate?
A.
The gift card started with $7.00.
B.
The gift card started with $12.00.
C.
The gift card started with $15.00.
D.
The gift card started with $20.00.
3 answers
A. The gift card started with $7.00.
explain
Sara estimated that she had $8.00 left on her gift card. Since she bought 6 muffins for $0.45 each, she spent a total of $2.70 on muffins. She also bought 2 boxes of cookies for $2.70 each, which totaled $5.40. Additionally, she bought 1 coffee cake for $3.72. In total, Sara spent $2.70 + $5.40 + $3.72 = $11.82 on her purchases.
If Sara estimated that she had $8.00 left on her gift card, it means she estimated that she spent $11.82 on her purchases and had $8.00 remaining. To determine the starting amount on the gift card, Sara subtracted $11.82 (estimated spent amount) from $8.00 (estimated remaining amount). This gives a total of $19.82. Since it is safe to assume that a gift card cannot have a fraction of a cent, Sara likely estimated that her gift card started with $20.00 (option D is correct).
Options A, B, and C are not valid assumptions because they do not match the estimation made by Sara.
If Sara estimated that she had $8.00 left on her gift card, it means she estimated that she spent $11.82 on her purchases and had $8.00 remaining. To determine the starting amount on the gift card, Sara subtracted $11.82 (estimated spent amount) from $8.00 (estimated remaining amount). This gives a total of $19.82. Since it is safe to assume that a gift card cannot have a fraction of a cent, Sara likely estimated that her gift card started with $20.00 (option D is correct).
Options A, B, and C are not valid assumptions because they do not match the estimation made by Sara.
1 answer