rob & freddie have 15 cds between them. rob has twice as many as freddie. how many cds does rob have
Solve for Freddie (f)
f + 2f = 15
3f = 15
f = 15/3
f = 5
So Freddie has 5 CDs and Rob has 10 CDs/
30
To determine how many CDs Rob has, we need to solve the following problem:
Let x be the number of CDs Freddie has.
Since Rob has twice as many CDs as Freddie, Rob would have 2x CDs.
According to the information given, the total number of CDs they have together is 15:
x + 2x = 15
To solve this equation, we combine like terms:
3x = 15
Then, divide both sides of the equation by 3:
x = 15 / 3
x = 5
So, Freddie has 5 CDs.
Since Rob has twice as many CDs as Freddie, Rob would have 2 * 5 = 10 CDs.
Therefore, Rob has 10 CDs.