Answer:
1.8 ; 11.8 ; 4.18
Step-by-step explanation:
Given the data:
X : 2.4,1.6, 3.2,0.3, 1.5
Mean, m = Σx / n
Σx = 9 ; n = 5
m = 9 /5
m = 1.8
If data is increased by 10:
X : 12.4, 11.6, 13.2, 10.3, 11.5
Σx = 59 ; n = 5
m = 59 /5
m = 11.8
If data values is doubled :
X : 5.76, 2.56, 10.24, 0.09, 2.25
Σx = 20.9 ; n = 5
m = 20.9 /5
m = 4.18
Answer:
Step-by-step explanation:
12.4
you have to multiply 1 5/9 times 8
E. 5/15 since you multiply the numerator and denominator by 5.
D. 2/3 since you divide the numerator and denominator by 3.
W. 15/24 since you multiply the numerator and denominator by 3.
J. 4/5 since you divide the numerator and denominator by 5.
C. 48/54 since you multiply the numerator and denominator by 6.
G. 24/21 since you multiply the numerator and denominator by 3.
T. 27/36 since you multiply the numerator and denominator 3.
Answer: x=25, y=19
Step-by-step explanation: Because the triangle is equilateral, all the angles must be equal to 60 degrees. So 2x+10=60. 2x=50 and x=25. Then the same thing: 3y+3=60. 3y=57, y=19.
20/28 = 3x / (4x + 2)
84x = 20(4x + 2)
84x - 80x = 40
4x = 40
x = 10
so the 2 lines are equal to 30 and 42
