Question: What is the number

Mathematics

2 answers:

jeka57 [31]3 years ago

5 0

2/5 would be the answer to your question

nordsb [41]3 years ago

3 0

Answer:

Step-by-step explanation:

2/5x + 6=3/4x-8

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Y=-x+1 -2x-y=2 substitution

UNO [17]

Step-by-step explanation:

$y=-x+1 \\ -2x-y=2$ given

$- 2x-( - x + 1)=2 \\ - 2x + x - 1 = 2 \\ - x = 2 + 1 \\ - x = 3 \\ x = 3$

put x

$-2( - 3)-y=2 \\ 6 - y = 2 \\ - y = 2 - 6 \\ - y = - 4 \\ y = 4$

8 0

3 years ago

Line k is graphed at right.

saw5 [17]

Answer:

See below ↓↓

Step-by-step explanation:

Equation of line k

y = mx + b
m = Δy/Δx (ratio of change in y to change in x) = 2/3
b = 3 (as y-intercept is [0,3])
⇒ y = 2/3x + 3

a. parallel line

For parallel lines, slope (m) remains the same, but the y-intercept (b) changes
⇒ y = 2/3x + 1

b. perpendicular line

For perpendicular lines, the slope (m) is the negative reciprocal of the original line and the value of b stays the same [it can be any point as long as it intersects the line]
⇒ y = -3/2x + 1

5 0

2 years ago

What do you add to 2 1/8 to make 4

barxatty [35]

Step-by-step explanation:

Let us add x to $2\frac{1}{8}$ to make 4.

$\therefore \: x + 2 \frac{1}{8} = 4 \\ \\ \therefore \: x + \frac{2 \times 8 + 1}{8} = 4 \\ \\ \therefore \: x + \frac{16 + 1}{8} = 4 \\ \\ \therefore \: x + \frac{17}{8} = 4 \\ \\ \therefore \: x = 4 - \frac{17}{8} \\ \\ \therefore \: x = \frac{4 \times 8 - 17}{8} \\ \\ \therefore \: x = \frac{32- 17}{8} \\ \\ \therefore \: x = \frac{15}{8} \\ \\ \therefore \: x =1 \frac{7}{8} \\ \\ \therefore \:1 \frac{7}{8} \: should \: be \: added \: in \: 2 \frac{1}{8} \: to \: \\ \: \: \: \: \: make \: it \: \: 4.$