Answer:
cost = $10
Step-by-step explanation:
let cost be x
Price = x+ (0.5x)= 1.50x
cost reduced in term of x is 20% of 1.50x
* 1.50x = 0.3x
hence 1.50x - 0.3x = 12
1.2x=12
x= = 10
cost = $10
Answer:
x = -0.357143
Step-by-step explanation:
Step 1: Write equation
18 - 7x = 20.5
Step 2: Solve for <em>x</em>
<u>Subtract 18 on both sides:</u> -7x = 2.5
<u>Divide both sides by -7:</u> x = -0.357143
Answer:
2,000
Step-by-step explanation:
Answer:
12qt = 3gal
Step-by-step explanation:
The result correct of this expression is 38
-
In a numeric expression, we first resolve the numbers that are in symbol, such as:
- parentheses, square brackets and braces.
<h3>
</h3>
The signs calculated in order are:
- multiplication/division, addition/subtraction.
<h3>The sign rules are</h3>
- ( - ) = +
+ ( + ) = +
- ( + ) = -
+ ( - ) = -
<h3>Resolution </h3>
So, the answer correct is <u>38</u>