Answer:
0.998272 (0.998 in 3sf)
Step-by-step explanation:
Probability(detects) = 0.88
Probability(doesn't detect) = 1 - 0.88 = 0.12
Total probability is always 1
Probability of atleast one detecting = 1 - probability(all not detecting)
= 1 - (0.12×0.12×0.12)
= 1 - 0.001728
= 0.998272
It is 2 and 2/9 (2.22222222...)
Answer:
x=18
Step-by-step explanation:
Step 1: Simplify both sides of the equation.
(1
/2
)x−7 = (1
/3
)x−4 (Distribute)
Step 2: Subtract 1/3x from both sides.
(1
/6)
x−7=−4
Step 3: Add 7 to both sides.
(1
/6
)x=3
Step 4: Multiply both sides by 6.
x=18
So you would find out what number in the 9 times tables goes into 25 and there's your answer x
8 1/2
1 1/2•15 =45/2 =22 1/2+15=37 1/2+15=52 1/2
60-52 1/2= 8 1/2 minutes
