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Mila [183]
3 years ago
5

Find the solution for the system of linear equations by substitution: y = 3x + 4 and y = x + 2.

Mathematics
1 answer:
ludmilkaskok [199]3 years ago
3 0

Answer:

Step-by-step explanation:

y = 3x + 4, and

y = x + 2

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

Use the vale of y in the 2nd equation in the first:

y = 3x + 4

x + 2 = 3x + 4

-2x = 2

x = -1

Use this value of x (-1) in either equation to find y:

y = x + 2

y = -1 + 2

y = 1

==========

(-1,1)

See attached graph.

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7√5÷5 please explain how u got the answer​
VikaD [51]

Answer:

7

Step-by-step explanation:

7√5÷5

5/5= 1 then,

√1=1

hence 7(1)=7

5 0
3 years ago
Vaughn paints his porch floor and also the porch floors of 9 neighbors. Each floor is a rectangle that is 8. 2 feet long and 6.
Burka [1]

Part a: The correct option A. 8.2 × 6.7  = 54.94; 54.94 x 9 = 494.46 square feet, for the equation of area.

Part b: Exact total area all 9 Vaughn paints = 494.46 square feet.

<h3>Explain the term the area of the rectangle?</h3>
  • The territory a rectangle occupies inside its 4 sides or limits is known as its area.
  • A rectangle's sides determine its area. In essence, the breadth and length of both the rectangle multiplied together gives the area of the rectangle.

As the equation stated-

Length of the rectangular porch floor = 8.2 feet

Width  = 6.7 feet

Part a: The most accurate estimation of the total area of all of the other painted porch floors comes from Vaughn paints.

Area = length x width

Equation for the total area is;

Area = 8.2 x 6.7 = 54.94 square feet.

There are 9 neighbor's floor also

Thus, equation becomes.

Area =  54.94 x 9 square feet.

Part b: Every one of the porch floors which Vaughn paints combined.

Area =  54.94 x 9 square feet.

Area =  494.46 square feet.

Thus, every one of the porch floors which Vaughn paints combined is 494.46 square feet.

To know more about the area of the rectangle, here

brainly.com/question/16239445

#SPJ4

The correct question are-

Vaughn paints his porch floor and also the porch floors of 9 neighbors. Each floor is a rectangle that is 8. 2 feet long and 6. 7 feet wide.

Part A: Which equations represent the best estimate of the total area of all the porch floors that Vaughn paints?

A. 8.2 × 6.7  = 54.94; 54.94 x 9 = 494.46 square feet

B. 8 x 7 = 56; 56 x 10 = 560 square feet

C. 10 x 7 = 70; 70 x 10 = 700 square feet

D. 10 x 10 = 100; 100 x 9 = 900 square feet

Part b: What is the exact total area of all the porch floors that Vaughn paints?

3 0
1 year ago
How to set up the equation
Drupady [299]
12x+2 is the answer

add 7x+5x=12x
-8+10=2
8 0
4 years ago
A survey of 100 high school students provided this
Fynjy0 [20]

Answer:

  • P(Take the bus U Walk) =3/5

Step-by-step explanation:

According to table we can find that

Number of students taking the bus:

  • 25 + 20 + 5 = 50

Number of students walking to school:

  • 3 + 2 + 5 = 10

Number of students either take the bus or walk:

  • 50 + 10 = 60

Required probability is:

  • P(Take the bus U Walk) =
  • (number of students either take the bus or walk) / (total number of students) =
  • 60/100 =
  • 3/5
5 0
2 years ago
Which expression is equivalent to 16 in exponential form? A) 4 × 4 B) 8 × 2 C) 23 D) 24
postnew [5]
The answer would be D) 24
8 0
3 years ago
Read 2 more answers
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