Final answer:
To solve this problem, set up a system of equations based on the given information. The price of the dress is $24 and the price of the pair of jeans is $44.
Step-by-step explanation:
To solve this problem, we can set up a system of equations based on the given information. Let's define d as the price of the dress and j as the price of the pair of jeans. We know that the pair of jeans and the dress together cost $68, so the first equation is d + j = 68. We also know that the pair of jeans is $20 more expensive than the dress, so the second equation is j = d + 20.
Now we can solve this system of equations. We can substitute the value of j from the second equation into the first equation to get d + (d + 20) = 68. Combining like terms, we have 2d + 20 = 68. Subtracting 20 from both sides, we get 2d = 48. Dividing both sides by 2, we find that d = 24.
Finally, to find the price of the pair of jeans, we can substitute the value of d into the second equation. j = 24 + 20 = 44. So the price of the dress is $24 and the price of the pair of jeans is $44.