<span>It doesn't matter that she guessed correctly on the first two questions, guessing the third question correctly is independent of guessing any other question correctly. Therefore, the probability is one out of four, 1/4.</span>
First we will find out the values of a
a/4=b/7
a=4b/7
Now
(a-b)/b
{4b/7-b}/b
(4b-7b)/7b
-3b/7b
-3/7
Answer:
30
Step-by-step explanation:
Product is the answer to a multiplication problem.
7x3=21
21 is the product.
21+9=30
30 is 9 more than 21.
1. -100 is the correct answer
2. true. the absolute value of a positive number is always positive
Answer:
4 2/3
Step-by-step explanation:
