A gardener is preparing soil for a flowerbed. The directions call for 2 2 3 cups of fertilizer for every 9 bags of soil. If the gardener is using only 3 bags of soil, how many cups of fertilizer does he need?

Respuesta :

Answer: [tex]\dfrac89[/tex] cups of fertilizer is required for 3 bags of soil.

Step-by-step explanation:

Given: For every 9 bags of soil, the number of cups of fertilizers required = [tex]2\dfrac{2}{3}[/tex]

Quantity of fertilizer is proportional to the quantity of soil.

Let x be the number of cup of fertilizer required for 3 bags of soil, then

[tex]\dfrac{x}{3}=\dfrac{2\frac23}{9}\\\\\Rightarrow\ \dfrac{x}{3}=\dfrac{\dfrac83}{9}\\\\\Rightarrow\ x=\dfrac{8}{3\times9}\times3\\\\\Rightarrow\ x=\dfrac89[/tex]

Hence, [tex]\dfrac89[/tex] cups of fertilizer is required for 3 bags of soil.