You have a piggy bank with $10 in it and you add $2.50 every day. How would you write this as an equation?

Answer 1

When you're writing an equation from a word problem, you just turn the words into numbers or symbols.

$10 = 10

add = +

$2.50 = 2.5

And since "every day" is a number we don't know, we use "x"

So, the equation is 10+2.5x