Answer:
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First, set up a porportion to help you answer the question. Put percent paid/100 is equal to sale price/ original. The percent paid would be 75% because if the chair is 25% OFF then you would pay 75%. So then you would define your variable (I'll use x). X equals the original price. So, 75/100 equals 90/x. Then you can reduce 75/100 to 3/4 and cross multiply to get 3x=360. Then you would divide both sides by 3 to get x=120. So the original price of the chair was $120
Answer:
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Step-by-step explanation:
1/2 = 4/8
=> 1/8 < 4/8
=> 1/8 < 1/2
Answer: True
Explanation: To add mixed numbers, first add the fractions.
So here, we have 4/9 + 6/9 which is 10/9.
Then add the whole numbers.
So we have 1 + 2 which is 3.
So our answer is 3 and 10/9.
But notice, that since 10/9 is an improper fraction,
our answer is not in lowest terms.
10/9 can be rewritten as the mixed number 1 and 1/9.
So 3 and 10/9 is the same as 3 + 1 and 1/9 which is 4 and 1/9.
Since 4 and 1/9 is in lowest terms, this is our final answer.
So we can say that 1 and 4/9 + 2 and 6/9 is 4 and 1/9.
Because 10 out of 140 chps do not conform to customer requirements, the probability of having a defective chip is
p = 10/140 = 0.0714
The probability of having a good chip is
q = 1 - p = 0.9286
Out of a sample of 5, the probability of finding a defective chip is
₅C₁ p¹ q⁴ = 5*0.0714*0.9286⁴ = 0.2655
The number of defective chips ofu of 5 is 0.2655*5 = 1.3275 ≈ 1
Answer : 1 chip
