.75 = 3/4
Hope that helps :)
[tex] 3x+12-4x-16 \\ (3x-4x) + (12-16) \\ -x -4 \\ x+4 [tex]
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➷ (12/20) = 0.6
(8/20) = 0.4
The experimental probability of the coin landing heads up is 0.6.
B) The theoretical would be considering it a fair coin.
1/2 = 0.5
The theoretical probability would be 0.5
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Answer: total cost earn=$1360
adult sold =45
student sold =80
adult cost twice as student cost so we can say adult sold 45+45=90
so total sold=90+80=170
to get the cost of 1 meal we divide 1360 by 170
1360/170=8
one student meal cost=8$
one adult meal cost=8*2=16
total students meal cost=8*80=640$
total adult meal cost=16*45=720
640+720=1360