Which ratio does not belong with the other three?
1 answer:
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Answer:
A. 1 bag
Step-by-step explanation:
A flower box is in the shape of a right rectangular prism which has dimensions:
Length = 90 cm
Width = 45 cm
Height = 45 cm
The box is 85% filled with soil, so the volume of the soil is;
Volume of a triangular prism = Length × Width × Height
× 90 cm × 45 cm × 45 cm = 154912.5 cm³
Each bag of soil holds 1 ft³ ≅ 28316 cm³
The volume of soil needed to finish filling the flower box is 100% - 85% = 0.15 of the box's volume = 0.15 × 90 cm × 45 cm × 45 cm = 27337.5 cm³
1 bag of soil ≅ 28316cm³
How many bags of soil ≅ 27337.5 cm³
Cross multiplying gives;
× 1 bag ≅ 0.9654435655 bags
Since we cannot have 0.9 bags, we need 1 full bag so that the remaining space in the flower box can be filled with soil.