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Paul wants to add new mulch to the top of all five garden beds. the new mulch will be 10 centimetres (cm) deep. about how much new mulch in cubic meters will paul need for this job? there is 3 beds across the top 4m x 3m and 2 across the bottom 5m x 3m

Respuesta :

(4*4*10)*3
160*3=480
(5*3*10)*2
150*2=300
480+300=780 cub. meters

Answer:

Dimension of a Rectangular Box = 4 m × 3 m

Dimension of Second Rectangular box =5 m × 3m

→Mulch should be added to these two rectangular boxes having height 10 cm=0.01 m.Because 1 meter=100 cm.

Volume of 3 Cuboids having dimension , 4m × 3m × 0.01 m

           =3 ×Length × Breadth × Height

           =3× 4m × 3m × 0.01 m

           =0.36 m³

Volume of 2 Cuboids having dimension , 5m × 3m × 0.01 m

          =2× 5m × 3m × 0.01 m

           = 0.30 m³

Total volume or Amount of the Mulch that is to be added to Rectangular Boxes

                   =0.36 m³ +0.30 m³

                 =0.66 m³

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