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3 years ago

Please help me with this!!! :(

Mathematics

1 answer:

Ulleksa [173]3 years ago

5 0

Your answer will be b. $6,851.28

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If 3x + 4y = 15, find an equation solving for x

nikklg [1K]

Answer:

x=105

Step-by-step explanation:

3x+4y=15

3x+4y=7

7*15=105

x= 105

i really hopes this helps i did this in last semester

5 0

3 years ago

Solve the formula for V<br><br> D=m/V <br><br> V=

Advocard [28]

Answer:

$D = \frac{m}{v} \\ \\ v D= m \\ \\ v = \frac{m}{D}$

I hope I helped you^_^

4 0

3 years ago

Label the terms, coefficients, constants, and variables of : 4x-7+15z-y+20

shutvik [7]

Answer: see below

Step-by-step explanation:

coefficient: the numerical before a variable (3x)

constant: a number that is represented as an individual (5)

variable: any nonnumerical symbols (x)

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

4x-7+15z-y+20

coefficient: 4 (4x), 15 (15z), -1 (-y)

constant: -7, 20

variable: x, y, z

Hope this helps!! :)

Please let me know if you have any question

5 0

4 years ago

(a) Count the number of ways to select a sample of 3 people to serve on a board of directors from a population of 6 people. answ

kodGreya [7K]

Answer:

a) 20

b) Equally likely, 0.05

Step-by-step explanation:

We are given the following in the question:

Population size, n = 6

Sample size, r = 3

a) Ways to select a sample of 3 from a population of 6

$= n^C_r\\=^6C_3\\\\=\dfrac{6!}{3!(6-3)!}\\\\=\dfrac{6!}{3!3!}\\\\=20$

Thus, there are 20 ways in which a sample of 3 can be selected from a population of 6.

b) The chances that any particular sample will be the one selected are equally likely.

$\text{Probability} = \displaystyle\frac{\text{Number of favourable outcomes}}{\text{Total number of outcomes}}$

Probability of selecting one particular sample =

$\text{P(Sample)} = \dfrac{1}{20} = 0.05$

Thus, 0.05 is the equally likely probability of selecting one sample.

5 0

3 years ago

I need help with this question, I don’t know the steps to answer

rewona [7]

Answer:

It is D

Step-by-step explanation:

8 0

3 years ago

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