Question

simi bought 3 table for a total amount $360 what is the cost of 9 table ?

Answer 1

Answer:

$1089

Step-by-step explanation:

using unitary method in DIRECT variation:

cost of 3 tables = $360

cost of 9 tables = ?

by cross multiplying:

let cost of 9 tables be x

9*360=x*3

3*360=x

1080=x

cost of 9 tables=$1080