Well first add up all the numbers of marbles (which is 34 in total) and divide it by the number of black marbles.
(which should give you 8/34)
Then simplify the fraction and you should get 4/17
Answer:
<em>n = 6 </em>
Step-by-step explanation:
2.3 × 
= (1 × 10³)(2.3 × 
)
(1 × 10³)(2.3 × ) = (1)(2.3) × (10³)( ) = 2.3 × 
2.3 × = 2.3 × ⇒ 3 + n = 9 ⇒ <em>n = 6</em>
Assume independence because there are probably a lot of widgets. 1/100 x 1/100 = 1/10,000
