Three quarter of the students running a 100-yard race finished with an average time of 16 seconds. The remaining 25% of students
1 answer:
Answer:
15 seconds
Step-by-step explanation:
Because the split id 25% and 75%, we could create another average pretending that there are four kids, one who ran in 12 seconds, and three who ran in 16.
Equation for averages: (a₁ + a₂ + a₃ + ... )/ n
Plug in:<em> (12 + 16 + 16 + 16)/4</em>
Add: 60/4
Divide: 15 seconds
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The standard form equation of the line connecting the two points is
Linear equation in a standard form is given as
where,
A, B, and C are constants or numbers
x and y are the variables.
To solve this problem, the following steps would be taken:
Step 1: Find the slope of the line connecting points (-3,4) and (2,-6)
where,
Substitute
Step 2: Find the y-intercept (b) of the line by substituting and
into
(slope-intercept form)
Step 3: Write the equation of the line in slope-intercept form by substituting and
into
Step 4: Rewrite the equation in standard form
Add to both sides
The standard form equation of the points (-3,4) and (2,-6) is
Learn more about standard form of two points of a linear equation here: