Answer: x=91
Step-by-step explanation:
x=360-90-73-46-60
Answer:
<em>x</em> = -1
Step-by-step explanation:
Let's solve your equation step-by-step.
7x + 12 = 2(1 − x) − x
Step 1: Simplify both sides of the equation.
7x + 12 = 2(1 − x) − x
7x + 12 = (2) (1) + (2) (− x) + − x (Distribute)
7x + 12 = 2 + − 2x + − x
7x + 12 = (− 2x + − x) + (2) (Combine Like Terms)
7x + 12 = − 3x + 2
7x + 12 = − 3x + 2
Step 2: Add 3x to both sides.
7x + 12 + 3x = − 3x + 2 + 3x
10x + 12 = 2
Step 3: Subtract 12 from both sides.
10x + 12 − 12 = 2 − 12
10x = − 10
Step 4: Divide both sides by 10.
10x/10 = - 10/10
x = - 1
Hope this helps! Sorry if it is confusing!
This is a system of equations problem. Set up the 2 equations like so: If the angles are complementary then they add up to 90, therefore, a + b = 90. We also know that a is 16 more than b. The word "is" means equals and "more" is addition. Therefore, a is 16 more than b is "a = b + 16". Now sub in that value of a (b + 16) into the first equation and solve for b. Then back-substitute to solve for a. (b + 16) + b = 90 so 2b + 16 = 90 and 2b = 74. So b = 37. If b = 37, then a + 37 = 90 and a = 53. Check yourself to make sure that 37 + 53 add up to equal 90 (they do, just get used to checking yourself for accuracy).
Answer:
The original cost was $19.
Step-by-step explanation:
In order to find that, start by taking the new price and dividing by the percentage of which you paid. Since there was a 20% discount, that means that you paid 80%
$15.20/80% = $19
Answer:
See below.
Step-by-step explanation:
SQUARE:
The area of the square is:
Factor it:
Remember that all four sides of a square is equal. The area is simply the side squared. Therefore, all four sides of the square measure (3x-2).
RECTANGLE:
Factor it. This resembles the difference of two squares, where:
This cannot be simplified further. Note that the sides of rectangles doesn't necessarily have to be the same.
The dimensions of the rectangle is:
(5x-4y) by (5x+4y)
