Approximately 80443

The 94 m² flower bed is to be planted with begonias. An area of ​​2 dm² is needed for one seedling. How many grams of seeds should be sown if 1 g of seeds contains approximately 5000 seeds? Losses when growing seedlings are usually 30%.

Correct answer:

x =  1.3429 g

Step-by-step explanation:

$$\begin{gathered} S_1=94{\text{m}}^2\to {\text{dm}}^2=94\cdot 100{\text{dm}}^2=9400{\text{dm}}^2 \\ {S}_2=2{\text{dm}}^2 \\ r=100\%-30\%=1-\frac{30}{100}=0.7 \\ a=S_1/S_2=9400/2=4700 \\ a=r\cdot b \\ b=a/r=4700/0.7=\frac{47000}{7}\doteq 6714.2857 \\ x=b/5000=6714.2857/5000=1.3429\text{g} \end{gathered}$$

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