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2 years ago

I need help ASAP!!!

Mathematics

1 answer:

Ulleksa [173]2 years ago

3 0

The are of the purple figure is 18 square units.

Step-by-step explanation:

Just count the number of squares of the purple units. Flr the incomplete squares, find the corresponding incomplete square and count them as 1.

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If a: b = 2:3, b: c = 4:3, and c: d = 7: 8, find a: d.

Taya2010 [7]

Answer:

a:d=7:9

Step-by-step explanation:

We have a system with 3 equation:

$\frac{a}{b}=\frac{2}{3}\\\frac{b}{c}=\frac{4}{3}\\\frac{c}{d}=\frac{7}{8}$

If we multiply all of these equations, then we have:

$\frac{a}{b}*\frac{b}{c}*\frac{c}{d}=\frac{2}{3}*\frac{4}{3}*\frac{7}{8}\\\frac{a*b*c}{b*c*d}=\frac{2*4*7}{3*3*8}\\\frac{a}{d}=\frac{56}{72}$

If we simplify this fraction dividing by 9, then:

$\frac{a}{d}=\frac{56:9}{72:9}=\frac{7}{9}$

Therefore, a:d=7:9

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2 years ago

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Evgen [1.6K]

So far I got

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3 years ago

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Airida [17]

Answer:

A) 33 3/4°

Step-by-step explanation:

The supplement of an angle is the difference between 180° and the angle measure:

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3 years ago

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