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

it's equivalent, so we can say that its equal.

let's call the denominator x and the numerador is 18 less then denominator, x - 18.

multiply

2.x = 5.(x - 18)

2x = 5x - 90

90 = 5x - 2x

90 = 3x

x = 90/3

x = 30

so:

let y equal to

the total fare and x is the mile of taxi ride. so the equation is

y = 0.55x + 1.75

since susie has

$10 to spend for a taxi cab, so he can have

10 = 0.55x +

1.75

x = 15 miles of

taxi ride

so the system of

inequality is

10 < 0.55x +

1.75

x > 2