Question

Carla has 6 shells in her collection. On Monday she finds 2 shells. She finds some more shells on Tuesday. Carla gives 5 shells to her brother. Then she has 7 shells left. How many shells does Carla find on Tuesday?

Answer 1

Carla finds 4 shells on Tuesday. Starting with her initial 6 shells, adding 2 from Monday, giving away 5, and ending up with 7, we solved to find out that she found 4 shells on Tuesday.

Step-by-step explanation:

The student question involves figuring out how many shells Carla finds on Tuesday. We start with the number of shells Carla has initially, add the shells found on Monday, include the unknown quantity found on Tuesday, and subtract the shells given to her brother to match the final count of shells she has left.

Here's the step-by-step explanation:

1. Start with 6 shells in Carla's collection.
2. Add 2 shells found on Monday, which equals 8 shells.
3. Let's call the number of shells found on Tuesday x. After Tuesday, Carla has 8 + x shells.
4. Carla gives 5 shells to her brother, so she is left with (8 + x) - 5 shells.
5. Carla has 7 shells left, so we set up the equation (8 + x) - 5 = 7.
6. To find x, solve the equation: 8 + x - 5 = 7 => x + 3 = 7 => x = 7 - 3 => x = 4.

So, Carla finds 4 shells on Tuesday.