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Pie
3 years ago
9

Write an

Mathematics
1 answer:
vitfil [10]3 years ago
5 0
Hopefully, this helps

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There are 870 boys and 800 girls in a school
alina1380 [7]

Answer:

1060

Step-by-step explanation:

Given:

No. of boys = 870

No. of girls = 800

Probability that a boy chosen studies Spanish = \dfrac{2}{3}

Probability that a girl chosen studies Spanish = \dfrac{3}{5}

the number of boys in the school who study Spanish :

\dfrac{2}{3}\times 870=290\times 2=580

the number of girls in the school who study Spanish :

\dfrac{3}{5}\times 800 \\=3\times 160\\\\=480

Therefore, total number of students who study Spanish would be :

480+580=1060

8 0
3 years ago
2x+3y= 14<br>3х - 4 y = 4<br><br>​
goldenfox [79]

The solution to given system of equations are (x, y) = (4, 2)

<em><u>Solution:</u></em>

<em><u>Given system of equations are:</u></em>

2x + 3y = 14 ---------- eqn 1

3x - 4y = 4 --------- eqn 2

We have to solve the given system of equations

We can solve the above system of equations by elimination method

<em><u>Multiply eqn 1 by 3</u></em>

3(2x + 3y = 14)

6x + 9y = 42 --------- eqn 3

<em><u>Multiply eqn 2 by 2</u></em>

2(3x - 4y = 4)

6x - 8y = 8 ----------- eqn 4

<em><u>Subtract eqn 4 from eqn 3</u></em>

6x + 9y = 42

6x - 8y = 8

( - ) --------------

9y + 8y = 42 - 8

17y = 34

<h3>y = 2</h3>

<em><u>Substitute y = 2 in eqn 1</u></em>

2x + 3(2) = 14

2x + 6 = 14

2x = 14 - 6

2x = 8

<h3>x = 4</h3>

Thus the solution to given system of equations are (x, y) = (4, 2)

5 0
2 years ago
What the factor os 12​
Mariana [72]

Answer:

Factors of 12 =1, 2, 3, 4, 6, 12

Step-by-step explanation:

7 0
2 years ago
What is the mode of this set of data? 1982 1988 1989 1994 1995 2005
Cerrena [4.2K]
All of the numbers are the mode, so it is
1982, 1988, 1989, 1994, 1995, 2005
8 0
3 years ago
Read 2 more answers
What is an equation of a line in standard form which has a slope of 1/2 and passes through the point (5,6)?
sertanlavr [38]
Y-6=1/2(x-5) in slope intercept form

y-6=1/2x -5/2. multiply by 2 to remove fractions

2y-12=x-5. write in correct order

x - 2y = -7 standard form
4 0
3 years ago
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