Answer:
<h2>x = 7</h2>Step-by-step explanation:
<u>Multiply the terms in the bracket</u>
We have
- 3x - 14 - 5x = - 70
- 8x - 14 = - 70
Using the addition property, add 14 to both sides
That's
- 8x + 14 - 14 = - 70 + 14
- 8x = - 56
<u>Divide both sides by - 8</u>
That's
<h3>We have the final answer as
<h3>x = 7</h3>Hope this helps you
Answer:
Her weight is increase by 18 lbs over past five years and the slope is 3.6 lbs per year.
Step-by-step explanation:
Given information: Estelle weight is
At age 16 = 110 lbs
At age 21 = 128 ibs
Increase in her weight over the past 5 years is the difference of weight at age 21 and at age 16.
Increase in her weight over the past 5 years = 128 - 110 = 18
Her weight is increase by 18 lbs over past five years.
Let x=age and y=weight, then the weight function passes through the points (16,110) and (21,128).
If a line passes through two points and
, then the slope of the line is
Using the above formula we get
Therefore the slope is 3.6 lbs per year.