Answer:
39.92
Step-by-step explanation:
10%=4.99
20%=9.98
49.90-9.98=39.92
Answer:
6
Step-by-step explanation:
12+x=3x
2x=12
x=6
Answer:
B) 1/8
Step-by-step explanation:
each child born has 50/50 to be a boy or a girl, so, we determine a Bernoulli process where p=0.5, and we need 3 out of 3 successes.
the probability will then be:
(0.5)³=0.125=1/8
Answer:
Step 5
Step-by-step explanation:
The mistake is in step 5.
The previous step was
The order operations, PEDMAS, must be applied:
We have Addition and Division here,
Using PEDMAS, we must divide first to get:
We can now add to get:
Therefore the mistake occurred at step 5
Answer:
1.5
Step-by-step explanation:
6/4=1.5
9/6=1.5