The telephone company offers two billing plans for local calls. Plan 1 charges $30 per month for unlimited calls and Plan 2 charges $15 per month plus $0.04 per call. Use an inequality to find the number of monthly calls for which plan 1 is more economical than plan 2

Step-by-step explanation:

CHECK THE COMPLETE QUESTION

The telephone company offers two billing plans for local calls. Plan 1 charges $30 per month for unlimited calls and Plan 2 charges $15 per month plus $0.04 per call.

a. Use an inequality to find the number of monthly calls for which Plan 1 is more economical than Plan 2.

b. Explain the meaning of the answer to part

We can denote the number of calls as "y"

From plan 1, the Total monthly charge is $30

From plan 2, the Fix charge is $15 with $0.04 per call

We can expressed the cost of "y" call as( $0.04y)

From plan2, The monthly charge can be expressed as (0.04x + 15)

a. Use an inequality to find the number of monthly calls for which Plan 1 is more economical than Plan 2.

Here, Plan 1 is more economical than plan 2.

0.04y + 15 > 30

Collect like terms we have

0.04y > 30-15

0.04y> 15

y > 375

b) in case, more than 375 calls are made,then the economical plan is plan 1

the inequality is:

250c+180g≥950

step-by-step explanation:

let c denotes the number of days in a week   miyoko worked as a cryptographer.

and g denotes the number of days in a week she works as a geologist.

now we are given that she earns $250 for every day she works as a cryptographer,and earns $180 for every day she works as a geologist.

now miyoko's goal is to earn more than $950 this week.

hence, the inequality could be represented as:

250c+180g≥950

8

step-by-step explanation:

just put √(2) * √(32) into a calculator. that will make the answer be 8.