You would change it because it is the simplest answer
Answer:
1/15
Step-by-step explanation:
-3/10 x -2/9= 6/90
6/90 can be simplified to 1/15
Answer:
x=40
Step-by-step explanation:
80°+(2x+20)°= 180°... (co-interior angles are supplementary)
2x=180 - 80 - 20
2x=80
(divide both sides by the coefficient of x which is 2)
x=80÷2
x=40
Check:
(2x+20) must be equal to 100
Let x=40
Therefore :
2X40+20
=100
5 and 10 are the multiples of 5 in the range 1-12, so there are 2 out of 12 possibiliies.
The probability is 2/12 = 1/6.