Sarah and Rachel each have apps on their phones.
• The number of apps on Sarah’s phone can be represented by x.
• The number of apps on Rachel’s phone is 4 times the number of apps on Sarah’s phone.
• The total number of apps on both girls’ phones is 115.
What is x, the number of apps on Sarah’s phone?
Let's set up an equation to solve for x. Since Rachel has 4 times the number of apps on Sarah's phone, we can represent the number of apps on Rachel's phone as 4x.
The total number of apps on both girls' phones is 115, so we can write the equation:
x + 4x = 115
Combining like terms, we get:
5x = 115
Dividing both sides by 5, we find:
x = 23
Therefore, the number of apps on Sarah's phone, represented by x, is 23.