Solve by elimination x-8y=18 -16x +16y=-8

x - 8y = 18

-16x + 16y = -8

We can multiply each term in the first equation by 2 to better assist this elimination.

2x - 16y = 36

Now, we can use elimination.

Add equations together.

-14x = 28

Divide both sides by -14

x = -2

Now that we have a value for x, we can solve for y.

-2 - 8y = 18

Add 2 to both sides.

-8y = 20

Divide both sides by -8

y = -2.5

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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: