Peg spends $7.50 a week for grapefruit. When grapefruit are out of season, she gets 1 fewer grapefruit than when they are in season. If the price decreases by $3 per dozen in season, how many dollars will it cost to buy a dozen grapefruit out of season?
To find out how many dollars it will cost to buy a dozen grapefruit out of season, we need to determine the cost per grapefruit and then multiply it by the quantity in a dozen.
First, let's determine the cost of a grapefruit when they are in season. We know that Peg spends $7.50 a week for grapefruit, and when they are in season, the price decreases by $3 per dozen. So the cost of a dozen grapefruit in season will be $7.50 - $3 = $4.50.
Next, let's find out how many grapefruit are in a dozen. A dozen implies 12 units. However, when grapefruit are out of season, Peg gets 1 fewer grapefruit. So when they are out of season, there will be 12 - 1 = 11 grapefruit in a dozen.
Finally, let's calculate the cost of a dozen grapefruit out of season by multiplying the cost per grapefruit by the quantity in a dozen. The cost will be $4.50 * 11 = $49.50.
Therefore, it will cost $49.50 to buy a dozen grapefruit out of season.