3 years ago

7.

Mathematics

1 answer:

saveliy_v [14]3 years ago

7 0

Answer:

Step-by-step explanation:

ratio and proportion:

<u>3 tickets</u> = <u> 7 tickets </u>

$13.20 x

then cross multiply: 3 (x) = 13.20 (7)

simplify: 3x = 92.4

solve for x = 92.4 / 3

x = $ 30.8

therefore,

7 tickets costs $ 30.8

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