3 years ago

HILP3.)

Mathematics

1 answer:

Pachacha [2.7K]3 years ago

5 0

Answer:

Step-by-step explanation:

a-number of advance tickets

s-number of same day tickets

a*40+s*25=2400

a +s =75

I solve with the substitution method

s=75-a

40a+25*(75-a)=2400

40a+1875-25a=2400

15a=2400-1875

15a=525

a=525/15

a=35

so s=75-35

s=40

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