In order for the triangle to be isosceles, we have to set two lengths of the triangle equal to each other.
Let's take the lengths 5x-12 and x+20 and set them equal to each other.
5x - 12 = x + 20
Combine like terms by moving them over to their respective sides.
Subtract x from both sides of the equation.
4x - 12 = 20
Add 12 to both sides of the equation.
4x = 32
Divide both sides by 4.
x = 8
Check your answer by substituting.
5x - 12 = x + 20
5(8) - 12 = 8 + 20
40 - 12 = 28
28 = 28
Solution: x = 8
Answer:

Step-by-step explanation:
Given:

Distribute to remove parentheses:

For simplification and clarity, reduce all mixed numbers to simplified common fractions:

Combine like terms:

Add 6/5 to both sides, then add 9/5x to both sides:

Divide both sides by -3/5 to isolate x (recall dividing by a number is equal to multiplying by its reciprocal):

The answer is "Math".....but technically the official name for it is Mathematics.
Answer:
recyclble materials include Milk bottles, news papaers and soda cans
the rest is compost
20 items is the total
13 are recycble
13/20 as a decimal is 0.65
multiply by 100
and answer is
<h2><u><em>
B.65%</em></u></h2>
Step-by-step explanation:
Answer:
300 millimeters (mm) then 40 centimeters (cm)
orders of magnitude from largest to smallest:
kilo, hecto, deca, meter, deci, centi, mili
or
King Henry Died Monday Drinking Chocolate Milk