Question

There were f frogs in a pond. 15 of the frogs hopped away. How many frogs would there be left in the pond if there were a total of 77 frogs to start? Write an algebraic expression to represent the problem above: Evaluate the expression for the given value:

Answer 1

The algebraic expression for the frog problem is f - 15. When evaluating this with the given number 77, we find that 62 frogs would be left in the pond after 15 have hopped away.

Step-by-step explanation:

The student's question is seeking to know how many frogs would be left in the pond after 15 hopped away, given there were originally 77 frogs. The algebraic expression to represent this situation is f - 15, where f is the initial number of frogs. To evaluate this expression with the given value, we substitute 77 for f, which gives us 77 - 15. This calculation results in 62 frogs remaining in the pond.

Step-by-step explanation:

1. Let f represent the number of frogs initially in the pond.
2. The number of frogs that hopped away is given as 15.
3. To find the number of frogs remaining, subtract 15 from f.
4. Plug in the given number of 77 frogs for f to find the solution: 77 - 15 = 62.
5. Therefore, there would be 62 frogs left in the pond.