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algol [13]
3 years ago
13

Bob has 200 coins in her piggy bank. Of those 40%are pennies. Out of the coins that are not pennies 25% are quarters. How many o

f the coins are quarters
Mathematics
2 answers:
nadezda [96]3 years ago
7 0

Answer: 200 x .40 = 80 (there are 80 pennies)

200 - 80 = 120

120 x .25 = 30 (there are 30 quarters)


Step-by-step explanation:


Otrada [13]3 years ago
4 0
200×40%= 80 pennies so 200-80=120 and 25% of 120 is 30 so 30 quarters. you can use the % sign when using a calculator or move the decimal over twice like this 200×.40=80 if a % sign is unavailable
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Vedmedyk [2.9K]

Set up a ratio:

240/180 = X/36

Cross multiply:

240 * 36 = 180x

8640 = 180x

Divide both sides by 180:

X = 8640 / 180 = 48

The person would weigh 48 pounds.

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3 years ago
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Write a polynomial of degree 3 that satisfies each of the given conditions.
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Answer:

https://www.jacksonsd.org/cms/lib/NJ01912744/Centricity/Domain/504/BI%207-8.pdf

Step-by-step explanation:

the link to help you with the answers

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3 years ago
(50 POINTS FOR THE FIRST ANSWER)
klasskru [66]

Answer: 16.13

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What is the solution?
AfilCa [17]

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A

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4 0
2 years ago
Find the area A of the polygon with the given vertices.
Natalija [7]

Answer:

A = 35 square units

Step-by-step explanation:

Formula to calculate the distance between two points (x_1,y_1) and (x_2,y_2) is,

d = \sqrt{(x_2-x_1)^2+(y_2-y_1)^2}

Length of the segment between A(2, 2) and B(9, 2) = \sqrt{(9-2)^2+(2-2)^2}

                                                                                     = 7 units

Length of the segment between B(9, 2) and C(9, -3) = \sqrt{(9-9)^2+(2+3)^2}

                                                                                       = 5 units

Length of the segment between C(9, -3) and D(2, -3) = \sqrt{(9-2)^2+(-3+3)^2}

                                                                                        = 7 units

Length of the segment between A(2, 2) and D(2, -3) = \sqrt{(2-2)^2+(2+3)^2}

                                                                                       = 5 units

Therefore, given polygon is a rectangle.

Area of the rectangle = length × width

                                    = 7 × 5

                                    = 35 square units

4 0
3 years ago
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