Answer:
4/45
Step-by-step explanation:
First find all the pairs that make 9 that are two digit:
1+8
2+7
3+6
4+5
5+4
3+6
2+7
1+8
That's 8 pairs, and as there are 90 two digit numbers, 8/90 is the answer. but if you want to simplify, the answer is 4/45
Answer:
5:9
Step-by-step explanation:
the ratio of the number of girls to the number of boys who attended the competition is 5:9
Answer:
The perimeter of the basketball court is <u>276 feet²</u>.
Step-by-step explanation:
Given:
The basketball court at Johnson Elementary School is the shape of a rectangle.
It is 92 feet long and 46 feet wide.
Now, to find the perimeter of the basketball court.
Length = 92 feet.
Width = 46 feet.
So, to get the perimeter we put formula:
Therefore, the perimeter of the basketball court is 276 feet².
<span>First and third results are coherent. They both represent a probability of 0.9. Because 9 out of 10 is 9/10 = 0.9, and 135 out of 150 = 135 / 150 = 0.9. Nevertheless, second result is not coherent because 32 out of 50 is 32/50 = 0.64. I think this number must be discarded, and use 0.9 as the experimental probaility. That means that for 300 trials you should obtain x / 300 = 0.9 => x = 0.9 * 300 = 270. Then, the answer is that you can expect that a yellow ball will be selected 270 times out of 300. </span>
Answer:
27
Step-by-step explanation:
