215 seconds
100/120=.833
.833×258= 215
Answer:
750 of 100,000 chips would be expected to be defective.
Step-by-step explanation:
(3/400) and (?/100,000)
100,000 ÷ 400 = 250.
Multiply 250 by 3 to find the number of defective chips.
250 x 3 = 750.
You can write 250,000/1 because in every number if you want to make fraction its always have 1 or put it under that number which is called denominator so the answer would be two hundred and fifty thousand, one: 250,000/1
250,000 will be numerator and 1 will be denominator