If 3/5 of a number is 18, that means that 1/5 is 6 as 18/3 = 6. Since 1/5 is equal to 2/10. 1/10 of the number = 3. 7/10 of the number is 3*7 which is 21.
Answer:
11
Step-by-step explanation:
First distribute the 3 to both the numbers inside of the parentheses:
3(k)-3(6)=15
3k-18=15
Add 18 to both sides
3k=33
Divide 3 from both sides to isolate k
k=11
Answer:
Exact Form:
39
/10
Decimal Form:
3.9
Mixed Number Form:
3 9/10
Step-by-step explanation:
Answer:
Use the Triangle Sum Theorem (all three angles inside a triangle add up to 180 degrees)
A is 27, C is 90 degrees (right angle) , B is unknown.
Now add. 117+B=180
B is 63 degrees.
D is 31 degrees, E is 90 degrees. F is unknown.
Add.
31+90+F=180
121+F=180
F is 59.
Step-by-step explanation:
Area of shaded part = area of circle - area of the square
= pi (6)^2 - area of the square.
Area of square = (m of one side) ^2
measure of of side is found as follows:-
6^2 = 2s^2 where m of the side = 2s
s = sqrt 18 so side of square = 2 sqrt18
area of square = (2 sqrt18)^2 = 4*18 = 72
area of shaded region = 36pi - 72 = 41.1 sq units to neraest tenth
