![d=37\](https://tex.z-dn.net/?f=d%3D37%5C)
<u>Step-by-step explanation:</u>
Here , we have In August, Cory begins school shopping for his triplet daughters. One day, he bought 10 pairs of socks for $2.50 each and 3 pairs of shoes for d dollars each. He spent a total of $135.97. We need to find What does d equal . Let's find out:
One day, he bought 10 pairs of socks for $2.50 each
Following is the equation for this info:
⇒ ![Money = 10(2.50)](https://tex.z-dn.net/?f=Money%20%3D%2010%282.50%29)
⇒ ![Money = 25\](https://tex.z-dn.net/?f=Money%20%3D%2025%5C)
3 pairs of shoes for d dollars each
Following is the equation for this info:
⇒ ![Money = 3(d)](https://tex.z-dn.net/?f=Money%20%3D%203%28d%29)
⇒ ![Money = 3d\](https://tex.z-dn.net/?f=Money%20%3D%203d%5C)
He spent a total of $135.97
Following is the equation for this info:
⇒ ![Total-Money = 135.97](https://tex.z-dn.net/?f=Total-Money%20%3D%20135.97)
⇒ ![25+3d=135.97](https://tex.z-dn.net/?f=25%2B3d%3D135.97)
⇒ ![3d=135.97-25](https://tex.z-dn.net/?f=3d%3D135.97-25)
⇒ ![d=37\](https://tex.z-dn.net/?f=d%3D37%5C)
Therefore ,
.