Solve for a
a=\frac{36}{109}\approx 0.330275229
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25a+0.8+2.25a=9.8
Add 2.25a to both sides.
27.25a+0.8=9.8
Combine 25a and 2.25a to get 27.25a.
27.25a=9.8-0.8
Subtract 0.8 from both sides.
27.25a=9
Subtract 0.8 from 9.8 to get 9.
a=\frac{9}{27.25}
Divide both sides by 27.25.
a=\frac{900}{2725}
Expand \frac{9}{27.25} by multiplying both numerator and the denominator by 100.
a=\frac{36}{109}
Reduce the fraction \frac{900}{2725} to lowest terms by extracting and canceling out 25.
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