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Elena-2011 [213]
3 years ago
14

August hosted two dinner parties for his friends. Twenty guests attended the first party, and twenty-eight guests attended the s

econd party. What is the percentage increase of the number of guests from the first party to the second party? the choices are 60%40%30%70% 
SOMEONE HELPP XOXO 
Mathematics
1 answer:
Neporo4naja [7]3 years ago
8 0
25+25x=27 
<span>25x=2 </span>
<span>x=2/25 </span>
<span>x=.08 </span>
<span>8%</span>
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Answer:

y = 100 - 2.5 x is the equation that represents her total profit from

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Step-by-step explanation:

The given is:

1. An electrician earns 100 dollars for a project installing light fixtures

2. She must pay for the light fixtures herself and they cost 2 dollars

   and 50 cents each

3. x represent the number of light fixtures and y represent her

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Her profit is the amount of money she has left over after paying for

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∵ The cost of each light fixtures is 2 dollars and 50 cents

- Let us change the cents to dollar

∵ $1 = 100 cents

∴ 50 cents =  dollar

∴ 2 dollars and 50 cents = $2.5

∵ Her profit = The money she earns - The money she pays

∴ The cost of each light fixtures = $2.5

∵ She installs x light fixtures

∴ She pays 2.5 x dollar

∵ She earns $ 100 for installing x light fixtures

∵ Her profit is $y

∴ y = 100 - 2.5 x

y = 100 - 2.5 x is the equation that represents her total profit from

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Step-by-step explanation:

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3 years ago
Finn has 7 bags of marbles. Each bag has 3 marbles.
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Answer:

I think it's 21

Step-by-step explanation:

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3 years ago
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What expressions represent 1/3 times the sum of 8 and 4
san4es73 [151]

Answer:

1/3 * (8 + 4)

Step-by-step explanation:

Expression which represents 1/3 tines the sum of 8 and 4

Expressing mathematically,

Sum of 8 and 4 is written as (8 + 4)

1/3 of the sum is expressed as ; 1/3 x (8 + 4)

Hence,

1/3 * (8 + 4)

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= 4

Expression is 1/3 * (8 + 4)

Result = 4

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e-lub [12.9K]

Answer:

c

Step-by-step explanation:

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From the given above, we can formulate the equation:

W = C / 218

By substituting the given values:

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W = 5 ounce

<span>Therefore the guinea pigs will gain additional 5 ounce if the diet was increased by 1090 calories.</span>

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