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sammy [17]
3 years ago
8

Make x the subject of y=4x+1​

Mathematics
1 answer:
almond37 [142]3 years ago
5 0

Y = 4x +1

Subtract 1 from both sides:

Y - 1 = 4x

Divide both sides by 4:

X = (y-1)/4

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Given x : y: z = 5:1:3 and z - y = 28. find the value of x + y​
Vera_Pavlovna [14]

Answer:

x + y = 84

Step-by-step explanation:

Given

x : y : z = 5 : 1 : 3, then

\frac{x}{y} = 5 ( multiply both sides by y )

x = 5y ←

and \frac{y}{z} = \frac{1}{3} ( cross- multiply )

3y = z

Substitute z = 3y into z - y = 28

3y - y = 28

2y = 28 ( divide both sides by 2 )

y = 14 ← ←

Substitute y = 14 into x = 5y

x = 5 × 14 = 70 ← ←

Substitute y = 14 into z - y = 28

z - 14 = 28 ( add 14 to both sides )

z = 42 ← ←

Thus x = 70, y = 14 and z = 42

Hence x + y = 70 + 14 = 84

5 0
3 years ago
Can someone please help me!!!
Lunna [17]

Answer:

7.536cm^2

Step-by-step explanation:

5 0
3 years ago
2. What's the area of a circle with radius 18 units? A. 36? units2 B. 324? units2 C. 18? units2 D. 9? units2
e-lub [12.9K]

c. 18 is the answer you get

3 0
3 years ago
Read 2 more answers
Find the product.<br> (n^3)^2 * (n^5)^4
Brums [2.3K]
Hi

(n^3)^2 × (n^5)^4 = n^6 × n^20 = n^26

<span>Answer: n^26</span>
8 0
3 years ago
What is the equation of the line perpendicular to 2x – 3y = 13 that passes through the point (–6, 5)?
nikdorinn [45]

Answer:

y =- \frac{3}{2}x - 4

Step-by-step explanation:

Given equation of line is:

2x-3y=13

We will convert the equation of line in point-slope form to find the slope of the line

Let  

m_1  be the slope of the line

So,

2x-3y=13

-3y= -2x+13

Dividing both sides by -3

(-3y)/(-3)=(-2x)/(-3)+13/(-3)

y=(2/3)x-13/3

The co-efficient of x is the slope of the line.

So,

m_1=2/3

Let

m_2  be the slope of second line

As we know that product of slopes of two perpendicular line is -1

m_1 m_2= -1

2/3*m_2= -1  

m_2= -1*3/2

m_2= -3/2

So m2 is the slope of the line perpendicular to given line.

The standard equation of a line is  

y=mx+b

To find the equation of line through (-6,5), put the point and slope in the given form and solve for b

5= -3/2 (-6)+b

5=18/2+b

5=9+b

b=5-9

b= -4  

Putting the values of slope and b, we get

y =- \frac{3}{2}x - 4

5 0
3 years ago
Read 2 more answers
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