Answer: A= 0,12
Step-by-step explanation:
Answer:
160
Step-by-step explanation:
60% of a + 24 = 3a/4
=> 60a/100 + 24 = 3a/4
=> 3a/5 + 24 = 3a/4
=> 3a / 4 - 3a/5 = 24
=> ( 15a - 12a) / 20 = 24
=> 3a / 20 = 24
=> a = 24 × 20 / 3
=> a = 8 × 20
=> a = 160
Answer: 54000 cube cm
Step-by-step explanation:
Let h be the height of the box kite,
Also the length of one face = 30 cm,
Hence, the total area of the kite box that is covered by the fabric
= 4 × Area of one face
= 4 × 30 × h
= 120 h
According to the question,
120 h = 7200
h = 60 cm
Hence, the height of the box = 60 cm,
The volume inside the kite = The base area of the box × Its height
= 30² × 60
= 900 × 60
= 54000 cm³
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