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4 years ago

PLEASE HELP ME VERY FASTTTTTTT!!!!!! I ACCEPT ALL ACUARTE ANSWERS:)

Mathematics

1 answer:

Marina86 [1]4 years ago

8 0

The correct answers are: AC CC CA AA

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Solve the following simultaneous equation using either the substitution method or the elimination method, showing all the necess

slavikrds [6]

Answer:

$x=1\frac{83}{91}\\y=-2\frac{73}{91}$

Step-by-step explanation:

#Using the method of substitution and replacement of unknown values.

Given that

$\frac{3}{2}x+\frac{2}{3}y=1...(i)\\and\\\frac{1}{6}x-\frac{3}{5}y=2...(ii)\\$

Express eqtn (ii) in terms of x

$\frac{1}{6}x=2+\frac{3}{5}y\\x=12+\frac{18}{5}y$

Replacing for x in eqtn (i)

$\frac{3}{2}(12+\frac{18}{5}y)+\frac{2}{3}y=1\\18+\frac{27}{5}y+\frac{2}{3}y=1\\18-1=-\frac{91}{15}y\\y=-2\frac{73}{91}$

Substitute y value in eqtn(ii) to obtain x

$Y=-2\frac{73}{91}\\\frac{1}{6}x-\frac{3}{5}y=2\\x=2+\frac{3}{5}(-2\frac{73}{91})\\x=1\frac{83}{91}$

4 0

3 years ago

0.6. &0.563&0.105 what are thoes three answers

Stells [14]

I believe those are decimals

7 0

3 years ago

The 10 members of the Photography Club want to raise $500, so they will hold a raffle with donated prizes. Jesse proposes that t

yan [13]

Answer:

pls follow me not because I am genius but because I am a swager SWAG

Step-by-step explanation:

by swag

4 0

3 years ago

Read 2 more answers

ivolga24 [154]

Using permutations and the probability concept, it is found that there is a 0.0417 = 4.17% probability that Nia is chosen as president.

A probability is the <u>number of desired outcomes divided by the number of total outcomes</u>.

As there are different roles, the order in which the students are chosen is important, hence, the <em>permutation </em>formula is used to solve this question.

Permutation formula:

The number of possible permutations of x elements from a set of n elements is given by:

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

Desired outcomes:

Nia's president.

For the other roles, 3 students from a set of 23, hence:

$D = P_{23,3} = \frac{23!}{20!} = 10626$

Total outcomes:

4 students from a set of 24, hence:

$T = P_{24,4} = \frac{24!}{20!} = 255024$

Then:

$p = \frac{D}{T} = \frac{10626}{255024} = 0.0417$

0.0417 = 4.17% probability that Nia is chosen as president.

To learn more about probabilities, you can take a look at brainly.com/question/24437717

8 0

2 years ago

Solve pls brainliest

Butoxors [25]

Step-by-step explanation:

-4+13=9

-16-(-29)=13F lower

4 0

3 years ago