Answer:
The letter "x" is often used in algebra to mean a value that is not yet known. It is called a "variable" or sometimes an "unknown".
Step-by-step explanation:
In x + 2 = 7, x is a variable, but we can work out its value if we try:)
The principal will donate 1.50 for every dollar the fifth graders raise
One way to find
is to notice that the part on the left hand side within the parentheses can be written as a square:
So you could write
Since these two expressions are equal, and the bases are the same, you know the exponents must be equal, with the exponent on the right hand side being 1. So
, or
.
Answer:
Earth?
Step-by-step explanation:
