Answer:
∠ I = 39°, ∠ J = 51°, ∠ K = 90°
Step-by-step explanation:
The sum of the 3 angles in a triangle = 180°
Sum the3 angles and equate to 180
3x + 21 + 5x + 21 + 90 = 180, that is
8x + 132 = 180 ( subtract 132 from both sides )
8x = 48 ( divide both sides by 8 )
x = 6
Then
∠ I = 3x + 21 = 3(6) + 21 = 18 + 21 = 39°
∠ J = 5x + 21 = 5(6) + 21 = 30 + 21 = 51°
∠ K = 90°
Answer:
The ratio for the boys is 24:40 and the girls is 16:40 so the girls and boys is 16:24
Step-by-step explanation:
Answer: 120 cm.
Step-by-step explanation: First, add the two bases together (10+6) and you'll get 16. Then, multiply the height with the sum of the two bases (15 x 16) and you'll get 240. Now, multiply it with 1/2 (or divide by 2) and you'll get 120. So, 120 cm. is your answer.
Answer:
The answer is 27, because 3×3×3=27
Assuming that the 100 – 85 = 15% are those who do not like reading mystery stories. It can solved by:
Let x = number of students in the library
30 = .15x
X = 200
Therefore, number of students in the library who liked reading mystery stories are 200(0.85) = 170.
