Answer:
29/35
Step-by-step explanation:
Answer:
C
Step-by-step explanation:
answer
0.54
explanation
since student A and student B are independent of each other, we multiply their individual probabilities to get the probability of both solving the problem
A * B
= 0.9 * 0.6
= 0.54
there is a 0.54 probability that both will solve the problem
Answer:
Step-by-step explanation:
X=20
180=7x+x+20
-20. -20
180=7x+x
180=8x
divide by 8
x=20
