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3 years ago

9

A birthday celebration meal is $ 46.80

1 answer:

kolezko [41]3 years ago

3 0

10% of 46.80 =4.68
46.80 + 4.68 = 51.48

Hope this helps :D

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what is the slope of the hypotenuse of a 3 4 5 right triangle where 3 is horizontal side 4 is vertical side and 5 is the other s

victus00 [196]

Slope is rise over run.
Vertical change/horizontal change
4/3 is the slope

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3 years ago

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The measurement of an angle is 40, and the length of a line segment is 8 centimeters the number of unique. Rhombuses that can be

Rufina [12.5K]

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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4 years ago

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An elementary school is offering 3 language classes: one in Spanish, one in French,and one in German. The classes are open to an

Alona [7]

Answer:

A. 0.5

B. 0.32

C. 0.75

Step-by-step explanation:

There are

28 students in the Spanish class,
26 in the French class,
16 in the German class,
12 students that are in both Spanish and French,
4 that are in both Spanish and German,
6 that are in both French and German,
2 students taking all 3 classes.

So,

2 students taking all 3 classes,
6 - 2 = 4 students are in French and German, bu are not in Spanish,
4 - 2 = 2 students are in Spanish and German, but are not in French,
12 - 2 = 10 students are in Spanish and French but are not in German,
16 - 2 - 4 - 2 = 8 students are only in German,
26 - 2 - 4 - 10 = 10 students are only in French,
28 - 2 - 2 - 10 = 14 students are only in Spanish.

In total, there are

2 + 4 + 2 + 10 + 8 + 10 +14 = 50 students.

The classes are open to any of the 100 students in the school, so

100 - 50 = 50 students are not in any of the languages classes.

A. If a student is chosen randomly, the probability that he or she is not in any of the language classes is

$\dfrac{50}{100} =0.5$

B. If a student is chosen randomly, the probability that he or she is taking exactly one language class is

$\dfrac{8+10+14}{100}=0.32$

C. If 2 students are chosen randomly, the probability that both are not taking any language classes is

$0.5\cdot 0.5=0.25$

So, the probability that at least 1 is taking a language class is

$1-0.25=0.75$

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4 years ago

Terry earns $10 per hour at Big Bob's Burgers. Jill earns 20% less than Terry and Jerry earns $0.50 more per hour than Jill. Whi

Dmitrij [34]

I would say around $5.50

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3 years ago

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Sally begins hiking at an elevation of 224 ft then she descends 131 ft and climbs 67 feet higher than her current position she t

Temka [501]

Answer:

Sally ends at 3 feet below zero point.

Step-by-step explanation:

Let be $h$ the height with respect to zero point, which is represented by the following sum:

$h = \Sigma_{i=1}^{n} h_{i}$

Where:

$h_{i}$ - i-th travelled height, measured in feet.

In addition, positive sign means ascension, whereas negative sign means descent.

The statement can be translated into the following mathematical identity:

$h = h_{1}+h_{2}+h_{3}+h_{4}$

$h = 224\,ft+(-131\,ft)+67\,ft -163\,ft$

$h = -3\,ft$

Sally ends at 3 feet below zero point.

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3 years ago