Answer:- 136.9
Step-by-step explanation:
3median=2mean+mode
3(137)=2(137.05)+mode
411=274.1+mode
411-274.1=mode
mode=136.9
Answer:
100.53m² area of carpet is left after putting the table in place.
Hello!
In order to find J you must multiply 6 by seven because J is 7 times larger than 6. So : 7 ⋅ 6= 42.
I hope it helps!
Answer:
(-3,0) ; (1,0)
Step-by-step explanation:
We have to solve the associated equation:
-2x^2 -4x + 6 = 0
-x^2 - 2x + 3 = 0
x^2 + 2x -3 = 0
Δ/4 = 1 + 3 = 4
x1 = -1 + 2 = 1
x2 = -1 -2 = -3
Answer:
the oldest sibling is 12 years old.
The middle child is 9 years old.
The youngest child is 6 years old.
Step-by-step explanation:
Let the age of the youngest child be x
Then the oldest child will be 2x.
The middle child will be x + 3.
Since the combined age is 27;
x + 2x + x + 3 = 27
4x = 27 - 3
x = 24 / 4
x = 6
now 2x = 12 and x + 3 = 9
