rachampt76
10.10.2021 •
Mathematics
The volume of air occupied inside a room is 405m3. The cost of carpeting the room at rs. 55/m2 rs. 4455. Find the cost of painting 4 walls of the room at rs. 25.5./m2
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Ответ:
x=5
Step-by-step explanation:
add 5 to both sides
-20+5 = -3x
-15=-3x (divide)
x=5