Question

Ariel has 19 more CDs than her sister Tiffany has. victor has 3 times as many CDs as Ariel has. Which expression can be used to show how many CDs the three have in total?

Answer 1

The total number of CDs can be found with the expression `Sigma=5T+76`

Explanation:

Be T the number of CDs owned by Tiffany.
Be A the number of CDs owned by Ariel.
Be V the number of CDs owned by Victor.

`A=T+19`
`V=3cdotA`

Therefore, the total number of CDs owned by Ariel, Tiffany and Victor is:

`Sigma=A+V+T=A+3cdotA+T=(T+19)+3cdot(T+19)+T`
`Sigma=5cdotT+76`