Mathematics: If one bag of topsoil covers 10 square feet, how many bags are needed to cover this flowr bed?

If one bag of topsoil covers 10 square feet, how

riah133

17.01.2022

3 bags are needed to cover this flower bed

Step-by-step explanation:

Use conversion:

1 yard = 3 feet

Area of a triangle(A) is given by:

$A = \frac{1}{2}bh$

where,

b is the base and h is the height of the triangle.

As per the statement:

From the given diagram:

Base(b) = 3 yards = 9 feet

Height(h) = 2 yard = 6 feet

then;

$A = \frac{1}{2} \cdot 6 \cdot 9 = 3 \cdot 9 = 27$ square feet.

Since, it is given that if one bag of topsoil covers 10 square feet

⇒10 square feet = 1 bag

then\;

in 27 square feet = $\frac{27}{10} = 2.7 \approx 3$ bag

Therefore, 3 bags are needed to cover this flower bed

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