Question

The expression 4r+10b represents the total amount, in dollars, earned by selling r rolls of gift wrap and b boxes of greeting cards. A freshman class earned a total of $958 by selling both gift wrap and greeting cards. The amount earned by selling the greeting cards is what fraction of the total amount earned?

1) b/958
2) 10b/958
3) r/958
4) 4r/958
5) (4r+10b)/958

Answer 1

The correct fraction that represents the amount earned by selling the greeting cards in relation to the total amount earned is 10b/958, which corresponds to Option 2.

Step-by-step explanation:

The expression 4r+10b represents the total amount, in dollars, earned by selling r rolls of gift wrap and b boxes of greeting cards. The freshman class earned a total of $958 by selling both items, and we want to find the fraction of this total that was earned from selling the greeting cards alone.

To do this, we look at the part of the expression that refers to the greeting cards, which is 10b. This means that the total amount earned from the greeting cards is 10b dollars. Therefore, the fraction of the total amount earned from selling the greeting cards is 10b/958.

It's important to note that the entire expression (4r+10b) represents the total earnings, so the correct fraction that represents the portion of total earnings from greeting cards is Option 2: 10b/958.