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GIVING BRAINLIEST. David's phone bill each month is $30. He is also charged $0.10 per GB of data he uses. If his phone bill in July was $42, how many GB of data did he use in July?

I also need an equation representing the word problem, thanks.

Respuesta :

eunwooyah

Answer:

120 GB

Step-by-step explanation:

{ David's phone bill each month is $30 }

So, July be charged

$42 - $30 = $12 data he use

[tex] \frac{12}{0.1} = 120[/tex]

•hence, the answer is 120GB

Parrain

Based on the total phone bill in July, we know that David had a total GB usage of 120 GB.

GB of data used in July

To find the number of GB used, you need to find the cost that is attached to the GB usage alone which is:

= Cost in July - Cost per month

The relevant equation for GB used would be:

= (Total phone bill in July - Base phone bill) / Cost per GB used

Solving gives:

= (42 - 30) / 0.10

= 120 GB

In conclusion, David used 120 GB

Find out more on cost per unit at https://brainly.com/question/953531.