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Ludmilka [50]
3 years ago
9

Abdul ordered some books online and spent a total of $133. Each book cost $8 and he paid a total of $5 for shipping. How many bo

oks did he buy?
Mathematics
2 answers:
Vsevolod [243]3 years ago
8 0

Answer:

8x+5=133

8x=128

x=16

Step-by-step explanation:

16 books

Ivahew [28]3 years ago
6 0

Answer:

He bought 16 books

Step-by-step explanation:

cost = flat fee + books * cost per book

133 = 5 +b*8 where b is the number of books

133 = 5+8b

Subtract 5 from each side

128 = 8b

Divide each side by 8

128/8 = 8b/8

16 = b

He bought 16 books

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Step-by-step explanation:

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bija089 [108]

Answer:

14

Step-by-step explanation:

(9x + 10)° = 136°

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Area of circle with diameter of 1 m?
Elena-2011 [213]

Answer:

A = 0.785m²

B = 31400cm²

C = 7850cm²

D = 785,000mm²

Step-by-step explanation:

To solve this question, we'll have to find the area of a circle which is

Area of a circle = πr²

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Area of a circle = πr²

r = radius of the circle

π = 3.14

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2. Radius = 100cm

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Area = 3.14 × (100)²

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3. Diameter = 100cm

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garik1379 [7]

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3 years ago
ANSWER FAST!!!
aleksley [76]
One barrel is equal to one cylinder. A cylinder consists of two faces which are circles and everything in between. The area of a circle is pi times radius squared. Using 3.14 as pi, multiply the square of the radius (9) by 3.14. You should get 28.26 . Multiply that because a cylinder consists of TWO circles as faces. That should be 56.52. To find the "wrap" or surface area of the space in between the circle, you need to find the circumference of the circle and multiply it by the height of the barrel (5ft). The circumference of a circle is pi (3.14) times diameter (6). The circumference of the barrel should be 18.84. Multiply that by the height and you should get 94.2. Now, take that number and add it to 56.52. The final answer would be 150.72
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