Question

A cubic meter of water weighs 1000kg. What is the weight of a waterbed mattress that is 4 meters by 2 meters by 15 cm if the casing of the mattress weighs 2kg?

Answer 1

Answer:

Vol. of water Bed=4x2xo.15=1.20m3

weight=I,20x1000 = 1200 kg

Total with casing mattress=1202kg

Answer 2

The weight of a waterbed mattress is 1202 kg.

Step-by-step explanation:

To find : What is the weight of a waterbed mattress that is 4 meters by 2 meters by 15 cm if the casing of the mattress weighs 2 kg?

Solution :

A waterbed mattress that is 4 meters by 2 meters by 15 cm.

Convert 15 cm into meter is 0.15 meter.

The volume of the water bed is $V=l\times b\times h$

$V=4\times 2\times 0.15$

$V=1.2\ m^3$

A cubic meter of water weighs 1000 kg.

The weight of volume is

$W=1.20\times 1000$

$W=1200\ kg$

The casing of the mattress weighs 2 kg.

The total weight is

$T=1200+2=1202$ kg.

Therefore, the weight of a waterbed mattress is 1202 kg.

#Learn more

Thers is a circular waterbed of radius 5 m inside a rectangular park of length 15 m and breadth 12 m find the area of the park excluding the waterbed.

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