In 20 years charles will be 3 times as old as he is now. How old is he now?
Let Charles's age be a today. We're given:
a + 20 = 3a
If we type this equation into our search engine, we get:
a = 10
Let's check our work in our given equation:
10 + 20 ? 3(10)
30 = 30 <-- Checks out!
Let Charles's age be a today. We're given:
a + 20 = 3a
If we type this equation into our search engine, we get:
a = 10
Let's check our work in our given equation:
10 + 20 ? 3(10)
30 = 30 <-- Checks out!