Answer: 44.7
Step-by-step explanation:
Mean= total sum of data set/ number of data set
313÷7
Mean = 44.7
45.96 + 1.95b = 387.21
-45.96 -45.96
1.95b = 341.25
/1.95. /1.95
175 boards
How to solve:
2(5y+3)-4(7y+1)=-88
10y+6-28-4=-88
-18y=-90
y=5
Solution for Y is 5
(I believe that is correct)
The answer to this question is b