2 2/3 + 1 2/9 = 3.7 9 - 3.7 = 5.3 so the answer would be 5.3 pounds of fertilizer left. Hope this helps!
Answer:
Step-by-step explanation:
-7q+12r=3q-4r
-10q=-16r
r=(5/8)q
I think its correct
Answer:
Step-by-step explanation:
13.71
Step-by-step explanation:
Given the data as : 13 , 17, 9, 21
Finding the mean of the data;
sum of data set =13+17+9+21=60
Number of data set ,n,= 4
Mean= sum/n =60/4 =15
Finding the deviation from the mean
13-4=9
17-4=13
9-4=5
21-4=17
Squaring the deviations from mean
9²=81
13²=169
5²=25
17²=289
Adding the squares of deviations from the mean
81+169+25+289 =564
Finding n-1
4-1=3
Finding variance
564/3 =188
Finding the standard deviation
√188 = 13.71