If a farmer wants to harvest 7200 ears of corn, he must plant 8571 seeds of corn.
"It is a mathematical statement which consists of equal (=) symbol between two algebraic expressions."
For given question,
A farmer calculates that of every 100 seeds of corn he plants, he harvests 84 ears of corn.
Let he plants 'm' seeds, then he harvests 7200 ears of corn.
100 : 84
m : 7200
After cross multiplication we get an equation,
[tex]\Rightarrow 100\times 7200=m\times 84[/tex]
We solve above equation to find the value of m.
[tex]\Rightarrow 100\times 7200=m\times 84\\\\\Rightarrow m=\frac{100\times 7200}{84}\\\\\Rightarrow m=8571.4\\\\\Rightarrow m\approx 8571[/tex]
Therefore, he must plant 8571 seeds of corn.
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