Question 31 and 34 please 30 points

Answer:

4. y+3=-1/3(x-9) 6a. 15x-y=0  6b. $150

Step-by-step explanation:

4.

Point slope form formula: y-y1=m(x-x1)

Includes origin and point (9,-3)

m= y2-y1/x2-x1

-3-0/9-0= -3/9=-1/3

slope= -1/3

Since we already have the point (9,-3),

enter the information above into the point slope form formula.

y-(-3)=-1/3(x-9)

y+3=-1/3(x-9)

6.

3h--> $75

1h--> $15

a)

Standard form: Ax + By = C

m(slope)=15

y=15x

y-15x=0

-15x+y=0

15x-y=0

b)

10 hours of work---> $150

Answer:

25 and 15

You can easily make a system of equations:

x + y = 40

x - y = 10

Solving for x on equation 2 gets x = 10 + y.

Plugging in this into the first equation, you get 10 + y + y = 40

Thus, 10 + 2y = 40

y = 15.

Plugging this back into either equation gets x = 25.

Area of rectangular garden = 21/53/10 = 63/50 =1 13/50 = 1.26

Consider Nina' s Garden is rectangular in shape

Length of the garden = 4 1/5 = 21/5

Width of the garden = 3/10

Area of the rectangle is given by

Area = Length Width

So the area of the garden is given by

Area= 21/53/10 = 63/50 =1 13/50 = 1.26

For more information please refer to the link

brainly.com/question/24408520

Area= length * width

length = 4 1/5= 21/5 . Multiply the whole number with the denominator. 4*5= 20 . Add 20 with the numerator. 20+1=22

width= 3/10

21/5* 3/10 ( Multiply the denominators together). ( Multiply the numerators together).

21*3 / 5*10

= 63/50 meters^2 or in mixed number:1 13/50 meters^2

Answer : 63/50 meters^2 or in mixed number:1 13/50 meters^2

Answer:

7148.16 grams of iron

Step-by-step explanation:

If you have 16 moles of S8, you have 16*8 moles of iron at 55.845 g/mol Iron. 16*8mol*55.845 g/mol leads moles to cancel and leaves you at 7148.16 grams of iron