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solong [7]
3 years ago
11

Jessica had $115 to spend on 9 books. After buying them, she had 16 dollars. How much did each book cost

Mathematics
1 answer:
bazaltina [42]3 years ago
8 0

Answer:

$11.00

Step-by-step explanation:

$115.00 - $16.00= $99.00 /9= $11.00

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Simplify (6^5/7^3)^2
o-na [289]
Simplify the following:
(6^5/7^3)^2

7^3 = 7×7^2:
(6^5/(7×7^2))^2

7^2 = 49:
(6^5/(7×49))^2

7×49 = 343:
(6^5/343)^2

6^5 = 6×6^4 = 6 (6^2)^2:
((6 (6^2)^2)/343)^2

6^2 = 36:
((6×36^2)/343)^2

 | | 3 | 6
× | | 3 | 6
 | 2 | 1 | 6
1 | 0 | 8 | 0
1 | 2 | 9 | 6:
((6×1296)/343)^2

6×1296 = 7776:
(7776/343)^2

(7776/343)^2 = 7776^2/343^2:
7776^2/343^2

 | | | | 7 | 7 | 7 | 6
× | | | | 7 | 7 | 7 | 6
 | | | 4 | 6 | 6 | 5 | 6
 | | 5 | 4 | 4 | 3 | 2 | 0
 | 5 | 4 | 4 | 3 | 2 | 0 | 0
5 | 4 | 4 | 3 | 2 | 0 | 0 | 0
6 | 0 | 4 | 6 | 6 | 1 | 7 | 6:
60466176/343^2

 | | | 3 | 4 | 3
× | | | 3 | 4 | 3
 | | 1 | 0 | 2 | 9
 | 1 | 3 | 7 | 2 | 0
1 | 0 | 2 | 9 | 0 | 0
1 | 1 | 7 | 6 | 4 | 9:

Answer: 60466176/117649
6 0
2 years ago
Hypotenuse of 9 and 12
vladimir1956 [14]

Answer:

108

Step-by-step explanation:

Hope I help :)

7 0
2 years ago
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slamgirl [31]
2000 grams = 2 kilograms since the prefix kilo- means thousand
7 0
3 years ago
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IrinaK [193]

Answer:

P

Step-by-step explanation:

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4 0
2 years ago
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Trig questions above solve for x and round to the nearest tenth
Alik [6]

Answer:

x= 51.3

x=35.1

Step-by-step explanation:

10.)

For this one we have the adjacent side and the hypotonouse

Which means we'll use CAH

cos(x)=25/40

x= 51.31781255

(assuming that we have to round to the nearest tenth again)

x=51.3

12.)

For this one we have the adjacent and hyptonouse

we'll use CAH again

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x= 35.09680123

x=35.1

7 0
3 years ago
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