anna is preparing the soil in her garden for planting tomatoes. the directions say to use 4 pounds of…

anna is preparing the soil in her garden for planting tomatoes. the directions say to use 4 pounds of fertilizer for 120 square feet of soil. the area of annas garden is 180 square feet. how much fertilizer is needed for a 180 square - foot garden? fertilizer (lb) 4 soil (sq ft) 120 180

anna is preparing the soil in her garden for planting tomatoes. the directions say to use 4 pounds of fertilizer for 120 square feet of soil. the area of annas garden is 180 square feet. how much fertilizer is needed for a 180 square - foot garden? fertilizer (lb) 4 soil (sq ft) 120 180

Answer

Explanation:

Step1: Set up proportion

Let $x$ be the amount of fertilizer needed. The proportion is $\frac{4}{120}=\frac{x}{180}$.

Step2: Cross - multiply

$120x = 4\times180$.

Step3: Solve for $x$

$x=\frac{4\times180}{120}$. $x = 6$.

Answer:

6 pounds