Answer: the leg x would equal 76.8, or 77 rounded. The actual number would be 76.8374908492.
85 x 3 = 255
first 2 test grades were 81 and 86:
81 + 86 = 167
Need to find the 3rd to have exact average 85:
255 - 167 = 88
So her 3rd test needs to make 88 to make average of 85
Double check: 81 + 86 + 88 = 255 = 85 + 85 + 85
Answer:
1. Calculate the slope from 2 points.
2. Substitute either point into the equation.
3.Solve for b, which is the y-intercept of the line.
4. Substitute b, -1, into the equation from step 2.
Step-by-step explanation:
I gave you one extra than what you expected, if thats ok.
Hope this helps : )
Answer:
b=0,b=5
Step-by-step explanation:
