Question

If the cost to mail a letter is 42 cents for mail weighing up to one ounce and 25 cents for each additional ounce or fraction of an ounce, find the cost of mailing a letter that weighs 77 grams.

a) $0.77
b) $1.24
c) $1.07
d) $1.51

Answer 1

To find the cost of mailing a letter that weighs 77 grams, convert the weight to ounces and calculate the cost using the given rates.

Step-by-step explanation:

To find the cost of mailing a letter that weighs 77 grams, we need to convert the weight from grams to ounces.

Since there are 28.35 grams in an ounce, dividing 77 grams by 28.35 gives us approximately 2.72 ounces.

Now we can calculate the cost of mailing the letter using the given rates:

The cost for the first ounce is 42 cents.

The cost for each additional ounce is 25 cents.

For the first ounce, the cost is 42 cents. For the additional 1.72 ounces (2.72 ounces - 1 ounce), the cost is 1.72 * 25 cents. Adding these costs together, we have:

Cost = 42 cents + (1.72 * 25 cents) = $0.42 + $0.43 = $0.85

Therefore, the cost of mailing a letter that weighs 77 grams is $0.85.