The ratio of boys to girls in chorus is 2:5. If there are 42 students in the chorus how many are boys
2 answers:
Answer:
12
Step-by-step explanation:
Let's create a table
2 : 5 is the same as 2x : 5x because you multiply both sides in 2:5 by x
If the ratio is 2x : 5x, what is the total?
2x + 5x = 7x
The total is 7x
However, we are given that there are 42 students
So, 7x = 42
x = 6
As we said earlier, boys = 2x
We know that x = 6, so 2x must equal to 12
There are 12 boys.
Hope this helps :)
Have a nice day!
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The computation shows the radius of the circle that is inscribed in the isosceles triangle will be 3.33cm.
<h3>How to calculate the radius?</h3>From the information given, the isosceles triangle the length of a base is 10 cm and the length of a leg is 13 cm.
Let A = area of the triangle
Let S = semi perimeter of the triangle.
The radius will be: = A/S
where,
The radius will be:
= 3.33cm
In conclusion, the radius is 3.33cm.
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Answer:
k=13.8
Step-by-step explanation:
Given function:
- 2.5k+47.4=81.9
- to find k..
<u><em>Subtract final and middle value:</em></u>
<em><u>Divide by 2.5:</u></em>
Therefore, k=13.8..
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▹ Answer
▹ Step-by-Step Explanation
29 + 18 = 47 → 29/47
Total boys → 100
29/47 * 100
Hope this helps!
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