Avoice only cellular plan cost 9.99 a month plus $0.16 per minutes of phone use last mouth his phone bill was $47.43 how many minutes did he use his phone

The Total number of min call he use his phone is 234 minutes .

Step-by-step explanation:

Given as :

The Total phone bill cost = $47.43

The fixed charge of cellular plan = $9.99

The per min phone charge =  $0.16 per min

Let The number of minutes did he use his phone = n min

Now, According to question

The Total phone bill cost = The charge of cellular plan + The per min phone charge ×  The number of minutes did he use his phone

Or, $9.99 + $0.16 × n = $47.43

Or, $0.16 × n = $47.43 - $9.99

Or, 0.16 × n = 37.44

∴  n =

I.e n = 234 min

So, number of minutes of call = n = 234 min

Hence The Total number of min call he use his phone is 234 minutes . Answer

answer: f true

step-by-step explanation:

answer: a video game has three difficulty levels: easy, medium, and expert. the game's scoring works in such a way that a player has to score a fixed number of points to advance to the next level, and then the scoring starts over. the total score needed to clear all three difficulty levels is 7,500. two times the number of points needed to clear the easy level is 500 more than the number of points needed to clear the medium level. twice the number of points needed to clear the medium difficulty level is 1,500 more than the number of points needed to clear the expert level. if x, y, and z represent the easy, medium, and expert levels, respectively, and a is the coefficient matrix of the system of equations modeling this situation, identify the inverse matrix, a-1, and the solution matrix, x, of the system of equations.

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