Tamera texted a photo of a dolphin to 5 friends. She asked her 5 friends to text the photo to 5 more friends. The photo chain continued with each friend texting the photo to 5 friends. How many photos of the dolphin will be texted after 4 rounds? Write and evaluate an expression that shows the number of photos.
I could find the answer -- but I don't know how to write the proper expression for it.
Ok thank u
To find the number of photos that will be texted after 4 rounds, we need to determine how many photos are being sent to new friends at each round.
In the first round, Tamera sends the photo to her 5 friends, resulting in 5 photos.
In the second round, each of Tamera's 5 friends sends the photo to 5 more friends. This means there are 5 friends x 5 photos = 25 photos sent in the second round.
In the third round, each of the 25 friends from the second round sends the photo to 5 more friends. This results in 25 friends x 5 photos = 125 photos sent in the third round.
In the fourth round, each of the 125 friends from the third round sends the photo to 5 more friends. This leads to 125 friends x 5 photos = 625 photos sent in the fourth round.
To write an expression that represents the total number of photos sent after 4 rounds, we can sum up all the photos sent in each round:
Expression: 5 + 25 + 125 + 625
To evaluate this expression, we simply add all the numbers together:
5 + 25 + 125 + 625 = 780
Therefore, after 4 rounds, a total of 780 photos of the dolphin will be sent.