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scoray [572]
3 years ago
14

The necklace has 34 blue beads and 51 white beads. What percentage of the beads on Nina's necklace are blue?

Mathematics
1 answer:
Ivahew [28]3 years ago
6 0

Answer:

40%.

Step-by-step explanation:

Total number of beads = 34 + 51 =  85.

The fraction which are blue = 34/85.

As a percentage this is (34*100) / 85

= 40%.

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Answer:

The number of unique rhombuses that can be constructed is one.

Step-by-step explanation:

A rhombus is a 2D shape with 4 straight sides that are all equal length. Also opposite sides are parallel and opposite angles are equal.

The addition of the 4 angles in a rhombus is equal to 360°. We know that one angle is 40°, its opposite angle is also 40°, then the addition of the other 2 angles (which are equal) is 360° - 2*40° = 280°. The other 2 congruent angles measure 140°.

If you have the length of one side (8 cm in this case), you have the length of all sides.

In conclusion, with one side and one angle a rhombus is completely defined and it's unique.

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Answer:

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