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ddd [48]
2 years ago
12

Using a graphical method, solve the simultaneous equations x+y =4 and y=2x+1

Mathematics
1 answer:
adoni [48]2 years ago
7 0

Answer:

(1, 3)

Step-by-step explanation:

Given the expression

x+y = 4 ... 1

y = 2x+1 ....2

Substitute equation 2 into 1

x + (2x+1) = 4

3x + 1 = 4

3x = 4-1

x = 3/3

x = 1

Since y = 2x + 1

y = 2(1) + 1

y = 3

Hence the solution to the equation is (1,3). This means that the coordinate point on the graph where both lines intersect will be at (1, 3)

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A boat has two sails in the shape of right triangles, labeled A and B in the figure below.
Maru [420]

Answer:

The area of sail A is One-fourth the area of sail B.

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
There are 450 total students at Snowden School. On Tuesdays, 12% of the students stay after school for Comedy Club. How many stu
Anestetic [448]

Answer:

54 students

Step-by-step explanation:

First, change the percent to a decimal.

12% = 0.12

Now, multiply the decimal by the total amount of students to find the amount of students that stay after school.

450 × 0.12 = 54

54 students stay after school for Comedy Club.

6 0
3 years ago
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Determain the equation, in slope intercept form, of the line of the line that has a slope of -6 and passes through the point P(-
Vinil7 [7]

Answer:

<h2>         y = -6x - 16</h2>

Step-by-step explanation:

The point-slope form of the equation is y - y₀ = m(x - x₀), where (x₀, y₀) is any point the line passes through and m is the slope:

m = -6

(-3, 2)    ⇒   x₀ = -3,  y₀ = 2

The point-slope form of the equation:

y - 2 = -6(x + 3)

So:

y - 2 = -6x - 18         {add 2 to both sides}

y = -6x - 16             ←  the slope-intercept form of the equation

5 0
3 years ago
.................................................6y=8x
frez [133]

Answer: look at the picture

Step-by-step explanation: Hope this help :D

8 0
2 years ago
Find the next two terms in this<br> sequence.<br> 1, 2, 6, 24, 120, [?],[]
Bogdan [553]

1x1=1

1x2=2

2x3=6

6x4=24

24x5=120

120x6=720

720x7=5040

the answer is 720 and 5040

4 0
2 years ago
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