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bija089 [108]
2 years ago
12

The exprnditure of 15 days of a man is as follows. calculate this average expenditure. 30,25,35,24,40,35,30,25,

Mathematics
1 answer:
atroni [7]2 years ago
7 0

Answer:

$30.53

Step-by-step explanation:

Find total sum

30+25+35=90

90+24=114

114+40=154

154+35=189

…

You will get 458

458/15=30.53333

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Mr. Lincoln buys juice and water for the school picnic. A pack of 8 juice boxes ca
alexgriva [62]

Answer:

5x + 3y = 95

8x + 6y = 170

x = 10 ; y = 15

Step-by-step explanation:

Let :

x = pack of juice boxes

y = pack of water bottles

Pack of juice box = $5

Pack of water bottles = $3

Amount of money spent :

5x + 3y = $95

Number of drinks purchased :

8x + 6y = 170

Using both equations ;

5x + 3y = 95 - - - (1)

8x + 6y = 170 - - - (2)

Multiply (1) by 6 and (2) by 3

30x + 18y = 570

24x + 18y = 510

Subtract :

6x = 60

x = 60 / 6

x = 10

Put x = 10 in (1)

5(10) + 3y = 95

50 + 3y = 95

3y = 95 - 50

3y = 45

y = 45 / 3

y = 15

x = 10 ; y = 15

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2 years ago
7 divided by 11187.4
DedPeter [7]

Answer:

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Step-by-step explanation:

I used a calculator on this one.

3 0
3 years ago
Help me pls ! if you do l give you the brainiest
Zina [86]
The first answer is correct because the terms are alike in both expressions
5 0
2 years ago
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Please solve and explain how. Photo attached
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Answer:

Step-by-step explanation:

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multiply by \frac{k^2-2k}{1} on each side

2=k^2-2k-1

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make it equal 0

0=k^2-2k-3

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2 years ago
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