Question

Question #f0d63

Answer 1

She had `1871` text messages in the month of June.

Explanation:

Since Miriam’s bill is over $20 we can assume that she had more than 1800 text messages. We have to write an equation to determine how many additional texts she had.

Thus the equation for the cost would be:

`y=.40x+20`
where `y=`total cost and `x=`number of texts after 1800

We know that the cost was `y=48.40`, so:

`48.40=.40x+20`

Solve for `x`:

`28.40=.40x`
`71=x` so she had `71` additional texts after her first `1800`

So she had `1871` text messages in the month of June.