Solve for a 6(a+3)=18+6a
1 answer:
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Given:
Scatter plot of weight loss plan.
To find:
how many pounds were lost per month with 4 hours of weekly.
Solution:
Take any two points on the trend line.
Let the points are (3, 4) and (5, 7).
Slope of the line:
m = 1.5
Using point-slope formula:
Add 4 on both sides.
Approximate equation of a line is y = 1.5x - 0.5
Substitute x = 4.
y = 1.5(4) - 0.5
y = 6 - 0.5
y = 5.5
Which is nearly equal to 6.
Also see in the scatter plot, y-value for the corresponding value of 4 in x-axis is 6.
Hence 6 pounds lost per month with 4 hours of weekly aerobic activity.
Answer:
Step-by-step explanation:
Let's write an equation describing the problem.
Any even whole number may be represented by writing
in which 
is any non-negative integer.
It follows that for a even whole number the next (consecutive) even whole number can be written as 
.
We now need to solve the following equation:
If we solve for we get:
We have to values, as the equation is quadratic. We take the positive one as the correct one. So
, and if we plug in this value to and we know that the asnwer is 16 and 18.
Any even whole number may be represented by writing
It follows that for a even whole number
We now need to solve the following equation:
If we solve for
We have to values, as the equation is quadratic. We take the positive one as the correct one. So