Answer:
3x - 10
Step-by-step explanation:
first set up the like variables next to each other
-4x + 7x - 7 - 3
Then, combine like variables
-4x + 7x = 3x
-7 - 3 = -10
The answer is:
3x - 10
X/y, y would be the 20 percent of course and x is the money earned
Answer:
Equal to!
Step-by-step explanation:
2 x 1.08 is 2.16
(1.08/100) x 200 = 2.16
2.16 = 2.16
Answer: -4.5, but only if the phrase "five twice the sum . . ." means 5*2*(the sum of . . .). "five twice" is confusing, so please check the question.
Step-by-step explanation:
5*2*(X + 3) = 3*(2X - 1)
10X + 15 = 6X -3
4X = -18
X = -18/4
X = - 4.5
You can always find the area from breaking it up into smaller shapes. For example, a hexagon is basically 2 trapezoids.
Some formulas for different shapes.
Trapezoid: <span>height × (base1 + base2) / 2
Rectangle: length x width
Parallelogram: height x base
Triangle height x base / 2</span>
