3/15 reduces to 1/5
1/5 = 0.2....0.2 * 100 = 20%
Answer:
Let x rep the lenght of the shorter one
Then the longer one is 2x+1
Therefore
(2x+1) + x = 16
We now solve for x
2x + 1 + x = 16
Group and evaluate like terms
3x +1 = 16
3x = 16 -1
× = 15/3
x = 5
So the shorter one is 5 ft
The longer one is 2(5)+1= 11
~45.25 because the formula for circumference is 2(3.14286)a or 2(3.14286)7.2
Answer:
Step-by-step explanation:
The area of the rectangle is 3x(2x+5)=6x^2 + 15x
The are of the triangle is 2(x-3)/2 = x-3
Now subtract the triangle are from the rectangles area
6x^2 + 15x - x + 3 = 6x^2 + 14x + 3
It is (c+d)
you can basically use FOIL (first,outside,inside,last) to solve this.
you know the first term of the factor has to be C because of the c^2
the second then has to be D because you haven't seen D in the factor yet and it is in the equation.
then you know from the equation that the terms with D are not negative so D isn't negative so you have form the information above (c+d)