A prepaid phone card has a balance of $22.40 remaining. If calls are $0.035 per minute, which equation represents the number of minutes, m, you may talk using the card?

The equation that represents the number of minutes that Imay talk using the card is .

Step-by-step explanation:

From statement we know that balance (), measured in US dollars, is directly proportional to remaining call time (), measured in minutes. That is:

(Eq. 1)

Where is the proportionality ratio, measured in US dollars per minute.

If we know that , then the equation is:

Now we clear remaining call time within equation:

The equation that represents the number of minutes that Imay talk using the card is .

amount of oatypop that contains the prize = 40%

amount   of oatypop which doesn't contain the prize = (100-40)=60%

probability that hannah will win a prize

    = s +f s +f f s+ff   f s+ff f f s+ infinity.where f= failure,s= success

=   or 60%

probability that hannah only has to buy 3 or less boxes before getting a prize= (s) and ( f s) and (ff s) and (f f f s)

        = = 87.04 %  

step-by-step explanation: