Answer:
The number is 8.
Step-by-step explanation:
Rewrite the word problem as an equation.
The sum of (we will be adding.), half of a number (we can use x, this will be written as x/2.) and double the number (this will be written as 2x) is 20.
To find the number, solve the equation.
x/2 + 2x = 20
Multiply both sides by 2.
x + 4x = 40
Combine terms.
5x = 40
Divide both sides.
x = 8.
Answer:
x = 56
Step-by-step explanation:
Answer:
$1200
Step-by-step explanation:
12,000*(-90%)
12,000*(.1)=1200
Answer:
-1
Step-by-step explanation:
The given expression is:
We multiply by the reciprocal to get:
We factor so that we can cancel easily:
Cancel the common factors to get:
This simplifies to:
