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Mice21 [21]
3 years ago
13

Haley bought 3 notebooks that each cost the same amount and 1 backpack that cost $36. The items she bought cost a total of $48 b

efore tax was added. What was the cost of each notebook
Mathematics
2 answers:
mel-nik [20]3 years ago
5 0
The answer is 4$ per note book
Marrrta [24]3 years ago
3 0
48-36=12
divide 12 and 3 and you get 4,so each notebook cost $4

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What does the PErron-Frobenius Theorem say, and why is it useful?
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Answer:

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One number is 5 more than another number. their sum is −15 . what are the numbers?
Aliun [14]
X=5+y
x+y=-15

subsitute 5+y for x

5+y+y=-15
5+2y=-15
minus 5 from both sides
2y=-20
divide both sides by 2
y=-10

sub back
x=5+y
x=5-10
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6 0
3 years ago
7 more than 6 times a number is negative forty seven what us the number
romanna [79]

Answer:

The number is -9.

Step-by-step explanation:

If we let the number be x we have the equation 6x + 7 = -47.

6x + 7 - 7 = -47 - 7

6x = -54

x = 054/6

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3 years ago
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Answer:

  • y / cos x

Step-by-step explanation:

<u>Use trigonometry to help</u>

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<u>Substitute values:</u>

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