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Andrej [43]
3 years ago
10

30 POINTS. WILL MARK BRAINLIEST. PLZ ANSWER ASAP.

Mathematics
1 answer:
makkiz [27]3 years ago
5 0

Answer:

3a - b

Step-by-step explanation:

Drama club: a

Since there are twice as many students in the cooking club as in the drama club,

Cooking club: 2a

Both: b

Total students = C + D - both

= 2a + a - b

= 3a - b

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8. Find the value of k, if (1-1) is a solution of the equation 3x-ky =8. Also, find the coordinates of
Yakvenalex [24]

Answer:

k = 5 and (6,2).

Step-by-step explanation:

Since (1,-1) is a solution of the equation 3x - ky = 8, so the point (1,-1) will satisfy the equation above.

Hence, putting x = 1 and y = -1 in the equation will give left-hand side = right-hand side.

So, 3(1) - k(-1) = 8

⇒ 3 + k = 8

⇒ k = 5 (Answer)

Therefore, the equation of the straight line is 3x - 5y = 8 ....... (1)

Now, putting x = 6 , then from equation (1) we get y = 2

Therefore, (6,2) is also a point on the graph of equation (1). (Answer)

8 0
4 years ago
Quien me ayuda? pls!!!
posledela

Answer:

The answer is B

Step-by-step explanation:

You need to find the derivitive of the equation and ,ultiply by B!!!

4 0
3 years ago
I can’t figure out what the half circle means the answer options are 163,129,149 and 186
vodka [1.7K]

Answer: 129

Step-by-step explanation: First find the area of the circle. Since we know the area of a circle is πr²  (pi multiplied by the radius squared) we can find the area of the half circle. The radius is 5 (because radius is half of the diameter)

Area=3.14(5)²

       =3.14(25)

       =78.5

But since this is just a half circle, divide this by 2

That will get 39.25

Then add this to the area of the rectangle (L*W) which is 90

That will get about 129

4 0
3 years ago
Which is the best way to answer a 10 question multiple choice test in which each question has 6 choices for answers
Firdavs [7]

Answer:

Rolling a die.

Step-by-step explanation:

A die has 6 sides for every answer and the only choice regarding the number 6 and you can roll (questions) times.

6 0
3 years ago
a recipe calls for 2 1/3 packages of pudding. how many batches can be made if 20 packages of pudding is available
Yuki888 [10]
8 batches is the maximum that you can make because 20 divided by 2 1/3 = 8.571428...
5 0
3 years ago
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