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Bingel [31]
3 years ago
15

Pe un teren de sport,fetele reprezinta un sfert din numarul baietilor.Daca pleaca 8 baieti si vin acelasi numar de fete,raportul

va fi de 1 la 2.Cate fete si cati baieti sunt?
Mathematics
1 answer:
Dovator [93]3 years ago
5 0

Answer:

the girls be 12 and boys be 48 respectively

Step-by-step explanation:

The computation of the number of boys and number of girls is shown below:

Let us assume A be girls

And, b  be boys

According to the question

b = 4 × a

b - 8 = 2 × (a + 8)

b - 8 = 2 × a + 16

4 × a -8 = 2 × a + 16

4 × a  - 2 × a = 16 + 8

2 × a = 24

a = 12

Now

b = 4 × a

= 4 × 12

= 48

Hence, the girls be 12 and boys be 48 respectively

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polet [3.4K]

The first car consumed 25 gallons of fuel while the second car consumed 30 gallons of fuel.

<h3>What is an equation?</h3>

An equation is an expression that shows the relationship between two or more variables and numbers.

Let x represent the first car consumption and y represent the second car consumption, hence:

x + y = 55   (1)

Also:

15x + 20y = 975   (2)

From both equations:

x = 25, y = 30

The first car consumed 25 gallons of fuel while the second car consumed 30 gallons of fuel.

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4 0
1 year ago
Please solve, might be last question of the day for me.
Fantom [35]
<h2><u>Answer:</u></h2><h3>The Line Plot is Below.</h3><h2><u></u></h2><h2><u>Solution Steps:</u></h2>

______________________________

<h3>1.) Turn each fraction into a decimal:</h3>
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  • 2\frac{1}{2}=2.5
  • 2\frac{3}{4}=2.75
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<h3>2.) Then draw the line plot:</h3>

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6 0
2 years ago
A pile of sand has a weight of 90kg the sand is put into a small bag and a medium bag and a large bag in the ratio 2:3:7
Finger [1]
90kg of sand had been puted in 3 bags but in 2+3+7=12 parts.
90kg/12=7.5kg
Small bag has 2 parts which is 7.5kg*2=15kg
Medium bag has 3 parts which is 7.5kg*3=22.5kg
Large bag has 7 parts which is 7.5kg*7=52.5kg
2:3:7=15kg:22.5kg:52.5kg
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3 0
3 years ago
4) Express 1697 in Roman figures:<br>​
evablogger [386]

Answer:

\huge{\textbf{\textsf{{\color{skyblue}{An}}{\blue{sw}}{\red{er}}{\color{red}{:}}}}}

1697 ➳ <u>MDCXCVII</u>

6 0
3 years ago
Read 2 more answers
What is the sum of the arithmetic series
docker41 [41]

Answer:

S_ {12} = 192

Step-by-step explanation:

The nth term of the given arithmetic sequence is

U_n = 3 + 2n

The first term of this series is:

U_1 = 3 + 2(1) = 5

The last term of this series is when

n = 12

U_ {12}= 3 + 2(12)

U_ {12}= 3 + 24 = 27

The sum of the first n terms of an arithmetic series when the first an last term is known is given by:

S_n =  \frac{n}{2}(a + l)

Where a=5 is the first term and l=27 is the last term.

S_ {12} =  \frac{12}{2}(5 + 27)

S_ {12} =6(32) =19 2

6 0
3 years ago
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