Use proportions because we know that the triangles are similar.
Cross multiply.
20x=28×5
x=7
answer: 7
Select the correct answer. Which expression is equivalent to the given expression?
1 answer:
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One fifth is the same as 
and 15 is the same as 
So just times across,
×
Resulting in(1 x 15= 15, and 5 x 1= 5),
If you need/want to reduce it, divide both numbers by 5. Leaving you with the simplified answer of
or 3. Either answer works. :)
If you have any questions, just comment them down below :)
So just times across,
Resulting in(1 x 15= 15, and 5 x 1= 5),
If you need/want to reduce it, divide both numbers by 5. Leaving you with the simplified answer of
If you have any questions, just comment them down below :)