Answer:
a = 4/27 - b/54
Step-by-step explanation:
27a+1/2b=4
Subtract 1/2 b from each side
27a+1/2b - 1/2 b=4-1/2 b
27a = 4 - 1/2 b
Divide each side by 27
27a/27 = 4/27 - 1/2 b/27
a = 4/27 - b/54
Answer:
Following are the responses to the given question:
Step-by-step explanation:
For point A:

For point B:
{x | x is the positive square number less than or equal to 81}
For point C:
All given sets were equal and equal, that since elements and the element no. are identical.
D=event that chip selected is defective
d=event that chip selected is NOT defective
Four possible scenarios for the first two selections:
P(DDD)=15/100*14/99*13/98=13/4620
P(DdD)=15/100*85/99*14/98=17/924
P(dDD)=85/100*15/99*14/99=17/924
P(ddD)=85/100*84/99*15/98=17/154
Probability of third selection being defective is the sum of all cases,
P(XXD)=P(DDD)+P(DdD)+P(dDD)+P(ddD)
=3/20
The equation is:

And
Total number of pages are 351
Step-by-step explanation:
The equation has to be formed by using the given information.
Let p be the total number of pages in the novel
Then
1/3rd of the p will pe:

Total pages read by John = 114
Then according to the statement

We can solve the equation to get the total pages of the novel

The equation is:

And
Total number of pages are 351
Keywords: Linear equation, variable
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