The percent change of 13.7 to 40.2 is 193.4%
To find percentage change, you need to find the difference between the two numbers. In this case, 26.5.
You then divide 26.5 by 13.7 and move the decimal point two spaces to the right.
<em>Answer:</em>
<em>x = 2√5</em>
<em>Step-by-step explanation:</em>
<em>Hi there !</em>
<em>x² = 20</em>
<em>x² = 4×5</em>
<em>x² = 2²×5</em>
<em>x = √2²×5</em>
<em>x = 2√5</em>
<em>Good luck !</em>
The area of the triangle is given as: ≈ 70.50cm²
<h3>What is the explanation to the above solution?</h3>
Area of shaded region = Area of the sector less Area of the Triangle.
This is represented as:
π r² (∅/360) - 1/2 x b x h
= π x 14² x (46/360) - (1/2) x 14 x 10.0708
= 78.6794 - 70.4956
= 8.1838 cm²
Hence, the area of the triangle is (1/2) x 14 x 10.0708
= 70.4956 cm²
Learn more about Area of Triangle at:
brainly.com/question/23945265
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Answer:
There were 72 adult tickets sold.
Step-by-step explanation:
I used the elimination method to solve this.
let the weight of the second alloy be y
convert the percentage to fraction, that is 10/100=0.1, 18/100=0.18, 13/100=0.13
Total weight if the mixture is 0.1 x 25+0.18y=0.13(25+y)
2.5+0.18y=3.25+0.13y
like terms together
0.18y +0.13y = 3.25-2.5
0.05y=0.75
divide both side by 0.05
Y is therefore 15 pound of 18% copper is needed
