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Stels [109]
3 years ago
5

Will mark Brainlest Help pleaseIf a:b =4:5 then find the duplicate value of a:b​

Mathematics
2 answers:
Vika [28.1K]3 years ago
8 0

Answer:

16:25

Step-by-step explanation:

The duplicate ratio of any ratio x:y is x^2:y^2. Therefore, the duplicate ratio of 4:5 is equal to 4^2:5^2=\boxed{16:25}

Nostrana [21]3 years ago
4 0

Answer:

it must be 5:4..I'm not sure.

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\displaystyle\\&#10;1 \frac{2}{5} +\Big(-5 \frac{1}{2} \Big) = ? \\  \\ &#10;1 \frac{2}{5} = \frac{1\times 5+2}{5}=\boxed{\frac{7}{5}} \\  \\ &#10;-5 \frac{1}{2} =-5 -\frac{1}{2} = \frac{-5\times2-1}{2} =\frac{-10-1}{2}=\frac{-11}{2}= \boxed{-\frac{11}{2} }\\  \\ \texttt{OR} \\  \\ &#10;-5 \frac{1}{2} = -\Big(5 \frac{1}{2} \Big)= -\Big( \frac{5\times2+1}{2} \Big)=-\Big( \frac{11}{2} \Big)= \boxed{-\frac{11}{2} }


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