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3 years ago

3. Nina has $20.14 in her purse. She buys lunch for $9.67. How much does she have left?

Mathematics

2 answers:

o-na [289]3 years ago

6 0

Answer:

Nina has $10.47 left.

Step-by-step explanation:

$20.14 minus $9.67 is $10.47

RoseWind [281]3 years ago

6 0

Answer:

$10.47

Step-by-step explanation:

Nina has $20.14.If she uses $9.67 for lunch then she would be left with($20.14-$9.67) which is equal to $10.47......

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Leno4ka [110]

Answer:

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Step-by-step explanation:

Area of the mural = A = $50 m^2$

Length of the mural = l

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l = 5 + 2w

Area of the rectangle = l × w

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Solving above equation with the help of Completing squares method:

$(\sqrt{2}w)^2+2\times \sqrt{2}w\times \frac{5}{2\sqrt{2}}+(\frac{5}{2\sqrt{2}})^2-50=(\frac{5}{2\sqrt{2}})^2$

$(a+b)^2=a^2+b^2+2ab$

$(\sqrt{2}w+\frac{5}{2\sqrt{2}})^2=(\frac{5}{2\sqrt{2}})^2+50$

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w = 3.904 m (accept)

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