Question

Travis would like to buy some toys to donate to charity. He plans to buy 9 dolls at d dollars each, 2 toy cars at c dollars each, and 3 train sets at t dollars each. Which expression represents the total cost, in dollars, of these items that Travis wants to buy? a) 9c - 2t - 3d b) 9c + 2t + 3d c) 9d - 2c - 3t d) 9d + 2c + 3t

Answer 1

Let's solve this step by step.

First, Travis is buying 9 dolls. Each of these dolls costs d dollars. So, the total cost for the dolls can be calculated by multiplying the price of each doll (d) by the number of dolls. This gives us:

9 * d = 9d

Travis also wants to buy 2 toy cars, and each car costs c dollars. So, we can calculate the total cost for the cars by multiplying the price of each car (c) by the number of cars:

2 * c = 2c

Finally, Travis is buying 3 train sets which cost t dollars each. Thus, the total cost for train sets can be computed by multiplying the price of each train set (t) by the number of train sets:

3 * t = 3t

To find the total cost of all the items Travis wants to buy, we need to add up the cost of the dolls, the cars, and the train sets. This results in the following expression:

9d + 2c + 3t

This expression represents the total cost for Travis.

Therefore, option d) 9d + 2c + 3t is the correct one.

Answer: d) 9d + 2c + 3t