Step-by-step explanation:
so, there were in total 63 + 7 = 70 questions.
therefore,
100% = 70
1% = 100%/100 = 70/100 = 0.7
to know how many % are the 63 correct answers we need to divide 63 by 1% :
63 / 0.7 = 90%
so, he got 90% correct.
You have a 1/2 (or 50 percent) chance of picking a cheese sandwich at random out of your total of 8 sandwiches, 4 out of which are cheese. Simplifying the fraction, you'd get 1/2 probability. Hope this helps!
Answer: D
Step-by-step explanation:
The key to finding the line perpendicular to the one given is teh slope. The slope is the opposite reciprocal of the original line.
m=3
perpendicular m=-1/3
Now that we know the slope, we can see which of our answer choices have -1/3 as the slope. We can see D is the only option that has -1/3 for slope.
Answer:
4032 different tickets are possible.
Step-by-step explanation:
Given : At a race track you have the opportunity to buy a ticket that requires you to pick the first and second place horses in the first two races. If the first race runs 9 horses and the second runs 8.
To find : How many different tickets are possible ?
Solution :
In the first race there are 9 ways to pick the winner for first and second place.
Number of ways for first place - 
Number of ways for second place - 
In the second race there are 8 ways to pick the winner for first and second place.
Number of ways for first place - 
Number of ways for second place - 
Total number of different tickets are possible is


Therefore, 4032 different tickets are possible.
Answer:
153\286
Step-by-step explanation:
A -box 1
B -box 2
B)- blue ball drawn