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2 years ago

2.

Mathematics

1 answer:

DochEvi [55]2 years ago

4 0

Answer:

I um need the question to answer.

Step-by-step explanation:

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Solve using substitution x=(3y+1) and x+4y=15

natka813 [3]

The solution is: x= 7 and y = 2

Step-by-step explanation:

Given equations are:

$x = 3y+1\ \ \ \ Eqn\ 1\\x+4y = 15\ \ \ \ Eqn\ 2$

Putting x = 3y+1 in equation 2 from equation 1

$3y+1+4y = 15\\7y+1 = 15\\$

Subtracting 1 from both sides

$7y+1-1 = 15-1\\7y = 14$

Dividing both sides by 7

$\frac{7y}{7} =\frac{14}{7}\\y = 2$

Putting y=2 in equation 1

$x = 3(2) +1\\x = 6+1\\x = 7$

Hence,

The solution is: x= 7 and y = 2

Keywords: Linear equations, substitution method

Learn more about linear equations at:

#LearnwithBrainly

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3 years ago

What 3 digits are in the units period 4083817

Snowcat [4.5K]

The 3 digits in the unit period is 817

6 0

3 years ago

Lorraine writes the equation shown.

Levart [38]

Answer:

a relation and a function

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Step-by-step explanation:

6 0

3 years ago

Read 2 more answers

If 75 percent of the employees of a certain company take a winter vacation, 40 percent take a winter and a summer vacation, and

anyanavicka [17]

Answer: 5%

Step-by-step explanation:

The number of employees that took Winter vacation = 75%

The number of employees that took Both winter and summer vacation = 40%

The number that took Neither = 20

The total number of employees (%) =Winter + Summer - Both + Neither = 100%

75%+ Summer - 40%+ 20%= 100%

Solving for Summer = 45%

Now we are interested in the employees that took summer but not winter = Summer only = Summer - Both(i.e. summer overlap with winter) = 45%-40%= 5%

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2 years ago

Trying find out which is true

lions [1.4K]

Answer:

Step-by-step explanation:

y>x+1

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3 years ago