Answer:
the lines represent absolute value bars
Step-by-step explanation:
STEP 1: Move all terms not containing |5−x| to the right side of the equation.
STEP 2: Divide each term by 3 and simplify.
STEP 3: Remove the absolute value term. This creates a ± on the right side of the equation because |x|=±x.
<em>5-x=±5</em>
STEP 4: Set up the positive portion of the ± solution.
STEP 5: Solve the first equation for x.
STEP 6: Set up the negative portion of the ± solution.
STEP 7: Solve the second equation for x.
NOTE: The solution to the equation includes both the positive and negative portions of the solution.
The answer is A
Hope this helps!
Answer:
28.35
Step-by-step explanation:
Let cost of 1 coat = c.
Let cost of 1 umbrella = u.
7c + 12u = 399.45;
3c + 25u = 503.80
Multiply both sides of the first equation by 25.
Multiply both sides of the second equation by 12.
175c + 300u = 9986.25
36c + 300u = 6045.6
Subtract the second equation from the first equation eliminating u. Then solve for c.
139c = 3940.65
c = 28.35
Answer: A coat costs $28.35.
Answer:
this is not a function because one y value has two different x values
Step-by-step explanation:
The formula for finding the area of a triangle is 1/2 base * height = area. In this case, we know the area and the base. Let's say the variable h represents height. We fill in the area and base with our known values to get 1/2 (30) * h = 450. Then, we solve. Half of 30 is 15, so 15h is equivalent to 450. Then, divide both sides by 15 to get h is equivalent to 30. To double check, fill in the base and area, and the newly found height. If the values make the equation make sense, the height is right. 1/2 (30) * 30 = 450. 15 * 30 is 450, so the height is 30 inches.
