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
To determine the roots or the zeros of the polynomial. These are the x-intercepts.
Hello! Here's my answer I could not do the second one but have a good day!
2/3 because that's the most average weight of beans because that's the most marked.
-Beatrix lebeau look me up ^w^
<3
Yes I think so because she write 42 per minute the question doesn't tell you anything else.
I am not sure :(
