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olga55 [171]
3 years ago
11

The sum of three numbers is 50 . The second number is 2 times the third. The third number is 10 more than the first. What are th

e numbers?
Mathematics
1 answer:
MAVERICK [17]3 years ago
8 0

The numbers are 5,30,15

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Find the hypotenuse of each isosceles right triangle when the legs are of the given measure. 6 sqrt 2
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Isosceles right triangles have two equal sides (a and b) that are not the hypotenuse (c). And when two sides are equal, so are their opposite angles. There are only 180° degrees in any triangles, thus the right angle = 90°, so 90 left for the two equal, means that 2x=90,
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There are several ways to go about solving a triangle like this. The best and easiest is simply to memorize that the hypotenuse is exactly root2 times the other sides. Or, each isosceles side is the hypotenuse (c) ÷ root2
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Another way to do it is the longer proof of Pythagorean Theorem:
{c}^{2}  =  {a}^{2}  +  {b}^{2}... \:  \:  c =   \sqrt{({a}^{2}  +  {b}^{2})}  \\
c= \sqrt{({6 \sqrt{2}) }^{2} + ({6 \sqrt{2})}^{2}}  \\ =  \sqrt{(2 \times{(6 \sqrt{2} )}^{2} )}  =  \sqrt{2(36 \times 2)}  \\ c =  \sqrt{144}  = 12

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3 years ago
A family earns $523 from a yard sale. They pay $45 in advertising fees. What's the family's profit from the yard sale Use formul
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$478 by using the provided formula ...
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Hey guys I have more questions comming soon​
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25a-40b-10 is your answer, hope this helped :)

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