1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
san4es73 [151]
3 years ago
15

Can someone explain this step by step please

Mathematics
2 answers:
777dan777 [17]3 years ago
8 0

Answer:

x is equal to -2

the equation is x + 3y = 4

so we substitute the value of 'x' which is -2 in equation x + 3 = 4

Step-by-step explanation:

then we move 3y on left side.

then we add 4 + 2 which is 6.

then it will be, y = 6/3

which is 2

therefore we get y = 2

hope this helps you ☺️☺️

levacccp [35]3 years ago
3 0

Answer:

2

Step-by-step explanation:

Since x=-2

-2+3y=4

Add 2 on both sides

3y=6

Divide 3 on both sides

y=2

You might be interested in
On the packaging for a triangular sail, the edge measurements for the sail are listed as
Gelneren [198K]

Answer: Obtuse triangle.


Step-by-step explanation:

1. By definition, you have:

- If the square of the length of the longest side is greater than the sum of the squares of the lengths of the other two sides, then the triangle is classified as "obtuse".

-  If the square of the length of the longest side is less than the sum of the squares of the lengths of the other two sides, then the triangle is classified as "acute".

-  If the square of the length of the longest side and the lenght of the other two sides are equal, then it is a right triangle.

2. Based on this information, you have:

(17ft)^{2}=289ft^{2}\\(15ft)^{2}+(7ft)^{2}=274ft^{2}

289ft^{2}>274ft^{2}

3. The longest side is greater than the other two sides. therefore, it is an obtuse triangle.

6 0
3 years ago
Read 2 more answers
Which equation of the least squares regression line most closely matches the data set?
Rudiy27

Answer: y = 3.5 x+ 43.8

Step-by-step explanation:

Here x represents the number of years after 1990

Thus, we get the table that is used to find the equation will be,

x             0                  2                4               6                8

y             45                51               57            61               75

Let the equation that shows the above data,

y = b + a x ---------(1)

\text{Where, }a=\frac{\sum y \sum x^2-\sum x \sum xy}{n(\sum x^2)-(\sum x)^2}

\text{And, }b = \frac{\sum xy - \sum x\sum y}{n\sum x^2 - (\sum x)^2}

By the above table,

\sum x = 20

\sum xy = 1296

\sum x^2 = 120

\sum y = 289

By substituting these values in the above value of a and b,

We get b = 43.8 and a = 3.5

Substitute this value in equation (1)

we get, the equation that shows the given data is,

y = 3.5 x + 43.8

⇒ Option (3) is correct.

4 0
3 years ago
Read 2 more answers
Find the values of the mode when median is given to be 5 and mean is 7.
Reil [10]

Answer:

<u>Mode = 1</u>

Step-by-step explanation:

<u>Relation between the Central Measures of Tendency</u>

  • Mean, Median, and Mode are commonly referred to as the Central Measures of Tendency
  • The formula between the three is given by :
  • ⇒ <u>Mode = 3Median - 2Mean</u> or <u>Mode + 2Mean = 3Median</u>

<u></u>

<u>Solving</u>

  • We know that :
  1. Median = 5
  2. Mean = 7

Therefore,

  • Mode = 3(5) - 2(7)
  • Mode = 15 - 14
  • <u>Mode = 1</u>
5 0
2 years ago
Read 2 more answers
This is the last question which is the fifth one if you can PLS HELP
Trava [24]
I think the answer is b
3 0
2 years ago
Read 2 more answers
What is the sum of the interior angles of a convex 14-gon?
Ad libitum [116K]
I hope this helps you

6 0
2 years ago
Other questions:
  • A researcher collects data on the relationship between the amount of daily exercise an individual gets and the percent body fat
    8·1 answer
  • Jayden wants to lay sod on his front yard and on half of his back yard. His front yard has a length of 50 feet and a width of 80
    12·1 answer
  • HELP!!!
    5·2 answers
  • Is twenty-five hundreths 2,500 ?
    5·1 answer
  • Midge walked 7/8 mile Monday and 4/5 mile on Tuesday. let x = how much farther she walked on Monday.
    12·2 answers
  • A 200 foot wire is attached from the top of a tower to a point on the ground 40 feet from the base of the tower. Find the height
    14·2 answers
  • 9)A linear equation is graphed. What is the y-intercept of the linear<br> equation?<br> *
    12·1 answer
  • DUE SOON
    8·1 answer
  • PLEASE HELP ASAP. WILL MARD BRAINLYEST
    12·1 answer
  • X - 4y = 1 and 3x + 2y = -11. What is the solution to the system of equations?
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!