Answer:
X=11
Step-by-step explanation:
(10x+30)=140
-30 both sides
10x=110
Divide 10 both sides
X=11
Answer:
16.5 year
Step-by-step explanation:
Using, mean = sum/no. *of observations
Here,
=> 16.2 = (sum of ages of boys)/18
=> 16.2 x 18 = sum of ages of boys
=> 291.6 = sum of ages of boys
Similarly, sum of ages of girls = 27 x 16.7 = 450.9
Mean(total) = (sumof agesof boys + girls)/45
Mean = (291.6 + 450.9)/45 = 16.5
The product is 5 the answer
Answer:
14
Step-by-step explanation:
1 2 3 4 5 6 7 8 9 10 11 12 13 14
10 pounds.
Hope this helps