Answer:
30/7
Step-by-step explanation:
Distribute:
-2x-26+9x=4
Combine like terms:
7x-26=4
Add 26.
7x=30
Divide by 7:
x=30/7.
Hope this helps :D
I believe the answer is 2 because 1/2 x 4 = 4/2 =2
Answer:
0.4 , 0.1
Step-by-step explanation:
Let number of boys be = b , number of girls = b + 4 . As total students = 20 b + b + 4 = 20 → 2b + 4 = 20 → 2b = 20 - 4 = 16 → b = 16 / 2 = 8 (boys) , so girls = 12
Prob (a random first child is a boy) = boys / total students = 8 c 1 / 20 c1, or = 8 / 20 = 0.4
Prob ( a 'Tina' out of two Tina is the last) = 2 c 1 / 20 c 1 , or = 2 / 20 = 0.1
Answer:
around 4.1
Step-by-step explanation: