Answer:
Ok and, what is the question
Step-by-step explanation:
 
        
             
        
        
        
Hey!
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First, find the slope.
y2-y1/x2-x1
-20-(-5)/21-16
-15/5
-3
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Second, find the y-intercept.
We can solve for b with one of the points.
Put into slope-intercept form,
y = -3x + b
Substitute x and y with (16, -5)
-5 = -3(16) + b
-5 = -48 + b
-5 + 48 = -48 + b + 48
43 = b
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Third, put in slope-intercept form.
y = mx + b
m = slope
b = y-intercept
y = -3x + 43
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Hope This Helped! Good Luck!
 
        
             
        
        
        
Answer:
48/100=48%
the girls who responded to the survey.
Step-by-step explanation:
To find the answer, you would put the total number of boys over the total number of kids who responded to the survey since the question wanted to know what percentage of all the kids were boys. Since the denominator is already 100, we can immediately say that the numerator, or 48, is the percentage of boys who took the survey. The other 52% of the kids were the girls who responded to the survey.
Step-by-step explanation:
 
        
             
        
        
        
Answer:
   6 hours
Step-by-step explanation:
Let x represent the time in hours it takes the second worker to do the job alone. Then each hour, 1/x of the job gets done by that worker. Similarly, the regular custodian accomplishes 1/3 of the job in each hour. Working together, they do 1/2 of the job each hour:
   1/3 +1/x = 1/2
   1/x = 1/2 -1/3 = 3/6 -2/6 = 1/6 . . . . subtract 1/3 and simplify
   x = 6
It takes the second worker 6 hours to do the same job alone.