Answer:
✐ En matemáticas, una variable es un símbolo que funciona como marcador de posición para expresiones o cantidades que pueden variar o cambiar; se utiliza a menudo para representar el argumento de una función o un elemento arbitrario de un conjunto. Además de los números, las variables se utilizan comúnmente para representar vectores, matrices y funciones.
<span>7/8-5/6
Multiply until both fractions have the same common denominator.
21/24 - 20/24
Subtract the numerators but NOT the denominators.
Final Answer: 1/24</span>
You would use the Pythagorean Theorem
a^2 + b^2 = c^2
The sides 'a' and 'b' are the legs of the right triangle. The side c is the hypotenuse or the longest side. In this case, the longest side is c = 61. The other two sides are a = 11 and b = 60. The order of 'a' and 'b' does not matter.
Let's use the substitution property to plug in the given values mentioned and we will get...
a^2 + b^2 = c^2
11^2 + 60^2 = 61^2
121 + 3600 = 3721
3721 = 3721
We get the same number on both sides; therefore, the original equation is true when (a,b,c) = (11,60,61).
This all confirms we do have a right triangle. The right angle is opposite the hypotenuse. This is due to the rule that the largest angle of a triangle is always opposite the largest side.
Answer:
Step-by-step explanation:
So we would have to multiply the "2x - 8" by 5 each resulting in 10x - 40 + 15. Then we subtract which results in 10x - 25 = - 15. We add 25 to 25 and 15 resulting in 10x = 10. We divide each by 10 which results in x = 1.
Sale price for coat =
275 x 0.85 (decimal multiplier for 15% decrease) = £233.75
£233.75 x 1.0725 (decimal multiplier for 7.25% increase) = £250.70