Answer:
∠1=140
Step-by-step explanation:
∠1=∠3 ( corresponding angles)
20x+60=30x+20
-20x+30x=60-20
10x=40
x=4
∠1=20x+60=20(4)+60=140
Answer:
The length is 22.1
Step-by-step explanation:
5.2 + 5.2 + 22.1+ 22.1 = 54.6
20% of the participants are girls and got a medal, and 33% of the girls got a medal.
<h3>What percent of the participants were girls who received medal?</h3>
First, we know that 40% of the participants were boys, so the other 60% were girls.
We know that 50% of the boys got a medal, so the percentage (in decimal form) of participants that are boys and got a medal is:
P = (0.4)*(0.5) = 0.2
So, 20% of the participants are boys and got a medal.
We know that the number of girls that got a medal is the same as the number of boys, then we also have that 20% of the participants are women who got a medal.
Then if the percentage of girls that got a medal is x (in decimal form), we must have that:
Q = (0.6)*(x) = 0.2
x = 0.2/0.6 = 0.33
x = 0.33
This means that 33% of the girls got a medal.
If you want to learn more about percentages:
brainly.com/question/843074
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No of molecules = no of moles x avogadro’s number
0.75 ( 6.02 × 10²³) = 4.515 x 10²³ (standard from)
