Answer:
29
Explanation:
Let John be x years old.
Michael is <span>x+17</span> years old.
In four years time, the sum of their ages will be 49:
<span>x+x+17+2<span>(4)</span>=49</span>
<span>2x=24</span>
<span>x=12</span>
So Michael is <span>12+17=29</span> years old now.
Let the number be y.
One third of y = (1/3)*y = y/3
This is decreased by 6; y/3 - 6
And it equals 8
That means:
y/3 - 6 = 8
y/3 = 8 + 6
y/3 = 14
y = 3*14
y = 42
The number is 42.
I hope this helps.
The slope of the line is calculated using
y2 - y1 / x2 - x1
Substituting the given values
-8 - 27 / 5 - 0 = -7
The rate of change or the slope is -7
And the initial value is the value of y when x is 0. From the first coordinates, the initial value is 27.
You have to find all solutions for x by breaking the absolute value into the positive and negative components.
x = 3, -25
