Mary works selling cards over the telephone. She sells two types of cards: birthday cards and holiday cards. Mary makes $2.00 for each box of birthday cards she sells, and $2.50 for each box of holiday cards she sells. She can work no more than 10 hours per week. It takes
her an average of 15 minutes to sell one box of birthday cards, and an average of 20 minutes to sell one box of holiday cards.
If she can sell no more than 35 boxes of cards in total, how many boxes of each type should she sell to make the most money? (Hint:
remember that an hour contains 60 minutes!)
**needs 4 constraints!!**

heyyy

step-by-step explanation:

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:

5=812a+9+3

step 1: simplify both sides of the equation.

5=812a+9+3

5=(812a)+(9+3)(combine like terms)

5=812a+12

5=812a+12

step 2: flip the equation.

812a+12=5

step 3: subtract 12 from both sides.

812a+12−12=5−12

812a=−7

step 4: divide both sides by 812.

812a /812 = -7/812

a= -1/116

so the answer is

a=   -1/116

52 \43 i don't know this i tried