Question

Calcular x-y:
8 ; 7 ; 11 ; 10 ; 14; 13; x; y

Answer 1

To calculate x-y, we need to know the values of x and y. However, since we only have seven out of the eight values in the sequence, we cannot determine the values of x and y with certainty.

One approach to estimating x-y is to find the average value of the sequence and assume that x and y are close to this average.

The average of the given values is:

(8 + 7 + 11 + 10 + 14 + 13 + x + y) / 8 = (63 + x + y) / 8

If we assume that x and y are close to the average, we can set x = y = (63 + x + y) / 8, which gives:

x + y = 63 + x + y

x - y = 0

Therefore, an estimate for x-y based on this assumption is 0. However, without more information about the sequence, we cannot determine the actual value of x-y.

Answer 2

To calculate x-y, we need to know the values of x and y. However, we can determine an expression for x-y based on the given data.

First, we need to find the sum of the given numbers:

8 + 7 + 11 + 10 + 14 + 13 + x + y = 63 + x + y

Next, we can use the fact that the sum of the first six numbers is equal to twice the sum of x and y:

8 + 7 + 11 + 10 + 14 + 13 = 2(x + y)
63 = 2(x + y)
x + y = 31.5

Now we can substitute this expression into the first equation:

63 + x + y = 63 + 31.5
x + y = 31.5

Therefore, x-y = (x + y) - 2y = 31.5 - 2y

We cannot simplify this expression any further without knowing the values of x and y.