Pls help find the value of x

x=-5

Step-by-step explanation:

First set the values equal to each other;

5x-10=3x-20

Add 10 to both sides;

5x-10+10=3x-20+10

Simplify;

5x=3x-10

Subtract 3x from both sides;

5x-3x=3x-10-3x

Simplify;

2x=-10

Divide both sides by 2;

2x/2=-10/2

Simplify 2x/2;

2/2=1

=x

Simplify -10/2;

Apply the fraction rule;

=-10/2

Divide the numbers ; 10/2

x=-5

x = 15

Step-by-step explanation:

<CBD and <DBA equal 90 degrees

5x - 10 + 3x - 20 = 90

8x - 30 = 90

8x = 120

x = 15

mr. graef told us it is 13 pints

step-by-step explanation:

answer: the price of one pound cabbage = $ 0.8

the point (10,8) represents that the cost of 10 pounds cabbage is $ 8

step-by-step explanation:

since, here is a proportional relation between the number of pounds of cabbage (x) and the price in dollars (y).

therefore, we can write,

⇒ y = k x

where k is the constant of proportionality.

now, point (5,4) is in the line.

thus, it will satisfies the above equation of line.

⇒ 4 = 5 k

⇒ k = 0.8

thus, the equation of the line is,

y = 0.8 x

a) for x = 1,

y = 0.8

therefore, the cost of one pound of cabbage is 0.8 dollars.

b) in the below graph (10,8) represents that the cost of 10 pounds of cabbage is 8 dollars.