Answer:
a = 2.5
Step-by-step explanation:
Simplify both sides by dividing both sides by a: 25a/a = 10a^2/a
That simplifies your equation to 25 = 10a.
Divide both sides by 10: 25/10 = 10a/10
2.5 = a
If you substitute 2.5 into the equation for a, 25 x 2.5 = 62.5, and 10 x (2.5)^2 = 10 x 6.25, or 62.5.
