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3 years ago

I NEED HELP, I NEED TO SHOW WORK

Mathematics

2 answers:

Verdich [7]3 years ago

7 0

Answer: 9 over 12 is = 15 over x

Step-by-step explanation:

scoray [572]3 years ago

7 0

X=18
y=20

why?
just add 6 to each value to get the missing number. you get 6 by subtracting 15-9 since 9 isn’t a missing number in the first triangle.

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What the heck am I doing something something something I’m doing this. So there’s enough writing.

AleksandrR [38]

Answer:

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Step-by-step explanation:

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2 years ago

From a group of 12 students, we want to select a random sample of 4 students to serve on a university committee. How many combin

borishaifa [10]

Answer:

495 combinations of 4 students can be selected.

Step-by-step explanation:

The order of the students in the sample is not important. So we use the combinations formula to solve this question.

Combinations formula:

$C_{n,x}$ is the number of different combinations of x objects from a set of n elements, given by the following formula.

$C_{n,x} = \frac{n!}{x!(n-x)!}$

How many combination of random samples of 4 students can be selected?

4 from a set of 12. So

$C_{n,x} = \frac{12!}{4!(8)!} = 495$

495 combinations of 4 students can be selected.

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3 years ago

X + y = 3<br><br> 2x + 2y = 6

STALIN [3.7K]

Answer:

x = Infinite answers.

y = Infinite answers.

Step-by-step explanation:

x + y = 3

2x + 2y = 6

=> Therefore, x and y have infinite values that can fit the equation.

Hoped this helped.

4 0

3 years ago

The cost of 6one by two metere

Alik [6]

Answer:

Rs 17 3/4

Step-by-step explanation:

Cost of 6 1/2 m = 115 3/8

Cost of 1 m = x

x = 115 3/8 ÷ 6 1/2
x = (115*8 +3)/8 ÷ 13/2
x = 923/8 × 2/13
x = 923/(4*13)
x = 923/52
x = 17 39/52
x = 17 3/4

Cost of 1 meter is Rs 17 3/4

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3 years ago

(-4, 6) and (3,-7) how do I solve this?

sertanlavr [38]

Answer: - 13/7

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3 years ago