Answer:
4
Step-by-step explanation:
Find the LCM of 12 and 15.
LCM = 60.
Now divide the LCM by the two numbers.
60/12 = 5, 60/15 = 4.
As the sister got an hour head start, subtract one.
5-1=4.
Therefore it will be 4 hours.
Supplementary because the line equals 180°
(x-21)+x
2x-21=180
2x=201
×=100.5°
Answer:
Step-by-step explanation:
15. (x + 6)(x + 1)
16. (m - 19)(m + 2)
17. (y - 8)(y - 2)
18. (p + 12)(p - 3)
19. (c - 15)(c + 3)
20. (w - 8)^2
21. (a + 15)(a - 2)
22. (x - 30)(x + 3)
23. 3(5r + 4)(5r - 4)
24. 5(3x - 1)(3x + 1)
25. m^2n(1 - n)(1 + n)
26. 6a(a - 2b)(a + 2b)
27. 3(x^2 + 5x - 24)
3(x + 8)(x - 3)
28. 2(m - 1)^2
29. x(x^2 + 9x - 52)
x(x+13)(x-4)
30. 4y(y^2+y-30)
4y(y+6)(y-5)
Answer:
70% of the meeting is left.
Step-by-step explanation:
1 hour=60 minutes
2 hours=120 minutes
--------------------------------
120-36=84
84/120=0.7
70%
Answer:
5
Step-by-step explanation:
Median= 6
Q1= 5
Q3= 8
