10 is the answer.
You know that there are 4 numbers and you have to add the numbers then divide them by four to get the mean. So all you have to do is reverse the steps, multiply 30 by 4 to get 120, then add 12+50+48 to get 110. Then subtract, 120-110=10. To check if it is correct add 12, 50, 48, and 10 to get 120, then divide by 4 to get 30. And voila, there is the answer. I hope this helped for future problems like this one.
Answer:
Option B is correct, i.e. Quadrilateral Trapezoid.
Step-by-step explanation:
A "set" is group of all elements which have some special relationship among them like set of Natural numbers (N), set of Real Numbers (R), set of Integers (Z) etc.
A "subset" is group of some elements which are part of some another larger set like Natural numbers (N) is subset of Real numbers (R), i.e. N ⊆ R.
In other words, "SET" behaves like a Big Family, and "SUBSET" behaves like a group of family members which are part of its Big Family.
Checking the given options:-
1. Triangle and Square are different.
2. Rhombus and Rectangle are different.
3. Parallelogram and Triangle are different.
<u>But option B, i.e. Trapezoid is a family member of Quadrilateral Family.</u>
Hence, option B is correct, i.e. Quadrilateral Trapezoid.
Answer:
11 : 44
Step-by-step explanation:
There are 11 6th graders and a combination of 44 7th and 8th graders. Therefore, the ratio is 11 : 44. Hope this helps!
(+/-) <span>1 x (+/-) 232 = 232
</span>(+/-) <span>2 x (+/-)116 = 232
</span>(+/-) 4 x (+/-) <span>58 = 232
</span>(+/-) 8 x (+/-) <span>29 = 232
</span>(+/-) 29 x (+/-) <span>8 = 232
</span>(+/-) 58 x (+/-) <span>4 = 232
</span>(+/-) 116 x (+/-) <span>2 = 232
</span>(+/-) 232 x (+/-) 1 = 232