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PilotLPTM [1.2K]
3 years ago
9

SOMEONE PLS HELP! THIS IS OVER DUE, HRLP ASAP!! I’LL GIVE 100 POINTS IF THIS IS ALL CORRECT! Work needs to be shown for all prob

lems. ( don’t do the ones that are crossed off )

Mathematics
2 answers:
Phantasy [73]3 years ago
8 0

Answer:

Step-by-step explanation:

6. Soil volume = area * height = 1/2*4*4*2.5 = 20 cubic ft

7. Concrete volume = length * width * height = 1.8*1.8*3 = 9.72 cubic ft

Block weight = 95*9.72 = 923.4 lb

8. It is unclear but let's assume the ramp consists of 5 pieces.

The total area = 4*6+3.5*(4+6+7.2) = 84.2 sq ft

So it will require a minimum of 85.2/(4*2) = 10.65 or 11 sheets of plywood

arlik [135]3 years ago
8 0

Answer:

Step-by-step explanation:

the skateboard ramp only needs 3 pieces: 2x triangle of 4' by 6' and 1x rectangle of 3.5' by 7.2'.

the 2x triangle require 4x6/4x2 = 3 sheets of plywood

the rectangle require 3.5x7.2/4x2 = 3.15 ~4

so minimum is 7 sheets

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