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Sophie [7]
3 years ago
11

the diameter of a U.S penny is 3/4 inch. how many pennies would it take to make a row 42 inches long?

Mathematics
2 answers:
lesya692 [45]3 years ago
7 0
42 divided by 3/4 equals 56 pennies
makvit [3.9K]3 years ago
5 0

Answer: 56

Step-by-step explanation:

We are given that ,

The diameter of each U.S. penny = \dfrac{3}{4} inch.

The length of the row of pennies = 42 inches

Then , the number of pennies in that row will be :

=\text{Length of row}\div\text{Diameter of each penny}\\\\=42\div\dfrac{3}{4}\\\\=42\times\dfrac{4}{3}\ \ \text{[Flip divisor fraction, multiply the original number by its reciprocal.]}\\\\=56  

Hence, the required number of pennies. = 56

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It will be 30

Step-by-step explanation:

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Use the figure to find the measures of the numbered angles. Explin your reasoning.
Reika [66]
1)81° due to the fact that 99° and (1) are supplementary angles
2)99° due to the fact that (5) and (2) are adjacent angles that sum up to equal 180°  
3)81° due to the fact that it is the corresponding angle to (5)
4)99° due to the fact that (4) and (2) are alternate interior angles which equal the same 
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3 years ago
5 calculators cost $140.00
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5 0
3 years ago
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A credit card had an APR of 17.84% all of last year and compounded interest daily. What was the credit card's effective interest
Andreas93 [3]
The solution to the problem is as follows:

<span>((1+.1784/365)^365) - 1 =.1953=19.53%
</span>
Therefore, best and most correct answer among the choices provided by your question is the fourth choice or letter D. 19.53%

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Find the area of the missing piece of the polygon and explain your process for finding it:
rusak2 [61]

Answer:

The area of the polygon is 42cm^{2}.

Step-by-step explanation:

A polygon is a shape that has three or more sides. They are named with respect to the number of their sides. Example, an octagon has 8 sides, hexagon has 6 sides etc.

From the given figure, the area of the shaded polygon can be calculated by;

Area of polygon = Area of square - Sum of areas given

Sum of areas given = 24 + 30 + 48

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The four sides of the figure are equal, thus it is a square. The length of each side is 12 cm, so that:

Area of square = length × width

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Area of polygon = 144 - 102

                           = 42cm^{2}

The area of the polygon is 42cm^{2}.

6 0
4 years ago
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