Tyrone is comparing mobile phone plans. the plans are as follows:
plan a: $95 for unlimited talk time and text messaging
plan b: 10 cents per minute for talk and 5 cents per text message
plan c: $20 monthly fee plus 5 cents per minute for talk and 5 cents per text message
plan d: $45 monthly fee with the first 500 minutes of talk free, then 10 cents per minute after that, along with unlimited text messages.
if tyrone talks for 800 minutes each month and uses 1000 text messages, which plan is least expensive for him?
plan a
plan b
plan c
plan d

Tyrone is comparing mobile phone plans. The plans are as follows:  

Plan A: $95 for unlimited talk time and text messaging  

Plan B: 10 cents per minute for talk and 5 cents per text message  

Plan C: $20 monthly fee plus 5 cents per minute for talk and 5 cents per text message  

Plan D: $45 monthly fee with the first 500 minutes of talk free, then 10 cents per minute after that, along with unlimited text messages.  

If Tyrone talks for 800 minutes each month and uses 1000 text messages, which plan is least expensive for him?  

Plan A  

Plan B  

Plan C  

Plan D

Step-by-step explanation:

The cheapest plan for Tyrone is the D: because it has unlimited free messages, and 500 minutes of free conversation, as 800 speaks, minus 500, there are 300 for which you would have to pay, 10 cent per minute, which would be $ 30 , plus the $ 45 that the plan costs, they would make a total of $ 75.

800 - 500 = 300 x 0.10 = 30 + 45 = 75 $

option a is correct.

step-by-step explanation:

scale factor: it is used to find proportional measurements.

proportions means having the same ratio.

scale factor is the ratio of the model measurement to the actual measurement in a simplest form.

or we can say that the ratio of any two corresponding lengths in two similar geometric figures

if the scale factor is more than 1, then it is an enlargement,

if the scale factor less than 1, then it is a reduction.

given the two geometric figure:

by definition of proportions, we have

about 0.75 hours

step-by-step explanation: