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Talja [164]
3 years ago
14

−7x−5y=36 x= 2y+3 wjats y and whats x?

Mathematics
1 answer:
Advocard [28]3 years ago
6 0

Answer:

y = -3 and x = -3

Step-by-step explanation:

-7x-5y = 36.........(1)

2y+3 = x............(2)

since in equation (2), x has already been made subject of formula we will substitute equation (2) in (1)

sub (2)in (1)

-7(2y+3)-5y =36

-14y-21-5y = 36

-14y-5y= 36+21

-19y =57

to make y subject, we divide both sides by -19

-19y_

- 19 y \19 = 57 \19

y = -3

sub y in equation (2)

2(-3)+3=x

-6+3=x

-3 =x

this implies that x = -3

therefore, y = -3 and x = -3

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if you're talking about which number is in between 9 and 45 there's only one number 27

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A factory machine produces kilograms of chocolate every minutes.
natita [175]

Answer:

1,000g:60sec

or 10 gram every singular second.

Step-by-step explanation:

3 0
3 years ago
What is the equation of the line that passes through (-3, -1) and has a slope of 3/5? Put your answer in slope-intercept form. y
zubka84 [21]

Answer:

Y=3/5x -4/5

Step-by-step explanation:

3/5 is the slope so you do 3/5x

-4/5 is negative because the line passes two negative coordinates

Hope this helps!

4 0
3 years ago
Please help me with this problem!
mina [271]

Answer:

Step-by-step explanation:

The diagram shows lines passing through the points of two equations.

We will determine the points through which the lines pass through on the graphs.

Looking at the line on the right hand side of the graph, the slope is

(y2-y1)/x(2-x1) where

y2= 0, y1 = 4

x2 = 3, x1=0

Slope, m = (0-4)/3-0

Slope = -4/3

Recall the equation of a straight line is y = mx + c

Where c is the intercept.

So the equation is y

y = -4x/3 + 4

Looking at the line on the left hand side of the graph, the slope is

(y2-y1)/x(2-x1) where

y2= 0, y1 = 2

x2 = -1, x1 =0

Slope, m = (0-2)/-1-0

Slope = -2/-1 = 2

Applying equation of a straight line is y = mx + c

The equation

y = 2x + 2

So the equations are

-4x/3 + 4. If x lesser than or equal 0

2x + 2. If x greater than 0

4 0
3 years ago
Help me please it is due in today
sashaice [31]

Answer:

a)3n-1

B) 2n+7

Step-by-step explanation:

To find the nth term you see what the gap is between each number for example

A) 2    5     8     11      14

   Has a gap of 3.

   Then you do write the 3 times table above it and find out how you get from 3 to 2

Hope this helps

6 0
3 years ago
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