ILL MARK U BRAINLIEST IF U EXPLAIN!!
2 answers:
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Answer:
The correct answer is option 3. (20, 4, 5)
Step-by-step explanation:
To solve this problem we use the substitution method.
(i)
(ii)
(iii)
We start by clearing x in (iii) and clearing y in (ii).
(iii)
(ii)
Now we substitute (iii) in (ii)
(iv)
Now we substitute (iii) and (iv) into (i) and clear z.
(v)
If (v)
We substitute (v) in (iii) and then substitute (v) in (iv)
The correct answer is option 3.
Answer:
No, I don't believe that percent of girls born in china is 46.7.
Step-by-step explanation:
Given
Natural ratio of girls to boy =100:105
In China , the birth ratio = 100:114
Number of girls=46.7%
In our study
Number of girls=60
Number of boys= 90
Total number of birth =150
To find the percentage of girls in our study
Percentage of girls=40%
Therefore, the percentage of girls in our study is 40% not 46.7%
Hence, I don't believe that percentage of girls born in China is 46.7%.
Answer:
1297.37 feet.
Step-by-step explanation:
Given:
The carousel at a local theme park has a diameter of 32 feet.
Each ride last three minutes and the speed of the carousel is 4.3 revolutions per minute.
<u>Question asked:</u>
What is the maximum distance riders travel in one full ride? Round to the nearest hundredth.
<u>Solution:</u>
First of all we will find the radius of the carousel:-
Diameter = 32 feet
Radius, r =
Now, we will find distance covered by the carousel in one ride that means its circumference;
In 1 minute, number of revolution taken by carousel = 4.3
<u>As each ride last for 3 minutes:-</u>
In 3 minutes, number of revolution taken by carousel = 3 4.3 = 12.9
In 1 revolution, distance covered by carousel = 100.571 feet
In 12.9 revolution, distance covered by carousel = 100.571 12.9
= 1297.365 feet
Thus, the maximum distance riders travel in one full ride is 1297.37 feet.