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Trava [24]
3 years ago
13

There are a total of 75 students in the robotics club and science club. The science club has 9 more students than the robotics c

lub. How many students are in the science club?
Mathematics
1 answer:
densk [106]3 years ago
5 0
There would be 84 students in the science club
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Will give brainliest
Vlada [557]

Answer:

lenght = 2x + 3

breadth = x - 1

perimeter = 40

Now,

perimeter = 2(l+b)

40= 2( 2x + 3 + x - 1)

40= 2(3x - 2)

40 = 6x- 4

40+4 =6x

44/6 =x

x = 7.33

6 0
2 years ago
Using the elimination method to solve <br> 2 x-y=8<br> x + y = 20
Pepsi [2]

Step-by-step explanation:

2x-y=8

x+y=20

------------

3x=28

×=28÷3=9.3

so

9.3+y=20

y=20-9.3

y=20.7

7 0
3 years ago
N/A questions does not exist
Sholpan [36]

Answer:

ok

Step-by-step explanation:

why did you put it

3 0
3 years ago
What’s 5/10 + 1/3 I really need help
kap26 [50]
5/10 + 1/3

15/30 + 10/30 = 25/30 = 5/6

Answer : 5/6 in its simplified form
7 0
2 years ago
Which of the following is an equivalent equation obtained by completing the square of the expression below? x^2+6x−8=0 A (x+3)^2
valentina_108 [34]

Answer:

Solving the equation x^2+6x-8=0 by completing the square method we get \mathbf{(x+3)^2=17}

Option B is correct option.

Step-by-step explanation:

We need to solve the equation x^2+6x-8=0 by completing the square method.

For completing the square method: we need to follow: a^2+2ab+b^2=(a+b)^2

We are given:

x^2+6x-8=0

Solving by completing the square

x^2+2(x)(?)+(?)^2-8=0

We need to find ? in our case ? is 3 because 2*3= 6 and our middle term is 6x i,e 2(x)(3)=6x.

So, adding and subtracting (3)^2

x^2+2(x)(3)+(3)^2-8-(3)^2=0\\(x+3)^2-8-9=0\\(x+3)^2-17=0\\(x+3)^2=17

So, solving the equation x^2+6x-8=0 by completing the square method we get \mathbf{(x+3)^2=17}

Option B is correct option.

7 0
2 years ago
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