In a batch of 890 calculators, 12 were found to be defective. What is the probability that a calculator chosen at random will be
1 answer:
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after solving we get
Step-by-step explanation:
We need to find the value of x in:
Solving:
So, after solving we get
Keywords: Solving the expression
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Answer:
Step-by-step explanation:
=> 5x-4+2(x-4) = 16
Expanding the brackets
=> 5x-4+2x-8 = 16
Combining like terms
=> 5x+2x-4-8 = 16
=> 7x - 12 = 16
Adding 12 to both sides
=> 7x = 16+12
=> 7x = 28
Dividing both sides by 7
=> x = 4