Final answer:
To find the number of pennies in the jar, we need to use the given information and set up an equation. Simplifying the equation, we find that there are 31 pennies in the jar.
Step-by-step explanation:
To find the number of pennies in the jar, we need to use the information given. We know that the jar contains an equal number of pennies, nickels, and dimes.
Let's assume that there are 'x' pennies in the jar.
Since there are 'x' nickels and 'x' dimes as well, the total value of nickels would be 'x * 5' cents and the total value of dimes would be 'x * 10' cents.
According to the problem, the total value of all the coins is 488 cents.
So, we can set up the equation: x + x * 5 + x * 10 = 488.
Simplifying this equation, we get: 16x = 488.
Dividing both sides of the equation by 16, we find: x = 31.
Therefore, there are 31 pennies in the jar.