All categories

3 years ago

X=3y + 1 2x + 4y =12

Mathematics

1 answer:

Alika [10]3 years ago

4 0

Answer:

the solution is (4, 1).

Step-by-step explanation:

The goal here is to "solve this system of linear equations." You need to share that along with the equations.

We can begin the solution by substituting 3y + 1 for x in the second equation:

2(3y + 1) + 4y = 12

Performing the multiplication, we get 6y + 2 + 4y = 12, or 10y = 10.

Then y must be 1.

Substituting 1 for y in the first equation, we get x = 3(1) + 1 = 4

Thus, the solution is (4, 1).

You might be interested in

Solve for x using the correct order operations

madam [21]

It B
x= -12
hope that helps

3 0

2 years ago

Read 2 more answers

Colin buys a car for £27900 he

gogolik [260]

£27900*0.97^2=£26251.11

4 0

2 years ago

Last week, Tina worked 40 hours in 4 days. She worked the same number of hours each day. How many hours did she work each day? W

blsea [12.9K]

She works 10 hour per day

3 0

3 years ago

A coin is tossed 5 times. Find the probability that none are heads. Find the probability that at most 2 are heads.

kiruha [24]

1- the answer is 1/32

each time we flip a coin the whole probabilities are 2
if we flip it 5 times
2*2*2*2*2=32

6 0

2 years ago

Last year, a person wrote 126 checks. Let the random variable x represent the number of checks he wrote in one day, and assume

Arisa [49]

Answer: The mean number of checks written per day $=0.3452$

Standard deviation $=0.5875$

Variance $=0.3452$

Step-by-step explanation:

Given : The total number of checks wrote by person in a year = 126

Assume that the year is not a leap year.

Then 1 year = 365 days

Let the random variable x represent the number of checks he wrote in one day.

Then , the mean number of checks wrote by person each days id=s given by :-

$\lambda=\dfrac{126}{365}\approx0.3452$

Since , the distribution is Poisson distribution , then the variance must equal to the mean value i.e. $\sigma^2=\lambda=0.3452$

Standard deviation : $\sigma=\sqrt{0.3452}=0.5875372328\approx0.5875$

6 0

3 years ago