Answer:
The answer is <u>9</u>
<u>Explanation</u><u>:</u><u> </u>
0.5a+8.75=13.25
We simplify the equation to the form, which is simple to understand
0.5a+8.75=13.25
We move all terms containing a to the left and all other terms to the right.
+ 0.5a=+13.25-8.75
We simplify left and right side of the equation.
+ 0.5a=+4.5
We divide both sides of the equation by 0.5 to get a.
a=9
Part (a)
The length is supposed to be 22.2 cm, but it could be 0.3 cm less
So 22.2 - 0.3 = 21.9 cm is the smallest value for the length. This is the lower bound of the length.
The upper bound is 22.2 + 0.3 = 22.5 cm as it is the largest the length can get.
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Use this for the width as well
The width is supposed to be 12 cm, but it could be as small as 12-0.3 = 11.7 cm and as large as 12+0.3 = 12.3 cm
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<h3>Answers:</h3>
- smallest length = 21.9 cm
- largest length = 22.5 cm
- smallest width = 11.7 cm
- largest width = 12.3 cm
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Part (b)
Use the smallest length and width to get the smallest possible area
smallest area = (smallest width)*(smallest length) = 11.7*21.9 = 256.23
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Repeat the same idea but for the largest length and width to get the largest possible area
largest area = (largest width)*(largest length) = 12.3*22.5 = 276.75
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<h3>
Answers:</h3>
- smallest area = 256.23 square cm
- largest area = 276.75 square cm
The answer would be 50% bc if you add all the coins together you get 100 and bronze is 50/100 which is 50%
Answer: 729 people are chosen in the sixth round.
Step-by-step explanation:
For a game, three people are chosen in the first round. Each of those people chooses three people in the second round. This means that the number of people chosen in the second round would be
3 + 3 + 3 = 9
This is 3²
If 9 people choose 3 people each in the third round, the total number of people chosen in the third round would be
3 + 3 + 3 + 3 + 3 + 3 + 3 + 3 + 3 = 27
This is 3³
This means that the number of people chosen at each round is 3^n
Where n represents the number of round. Therefore,
In the 6th round, n = 6
Number of people chosen is
3^6 = 729