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3 years ago

Hi please help me fast thank You

Mathematics

2 answers:

olga_2 [115]3 years ago

7 0

Answer:

K=0.25

Step-by-step explanation:

Well the realationship in the problem y=kx. so now we substitute the numbers so that the equation is now -1/2=-2k

-1/2=-2k

-1/2/-2=k

0.25 or 1/4=k

son4ous [18]3 years ago

3 0

Answer:

k=1/4

Step-by-step explanation:

1/4x1=1/4

0x1/4=0

-1x1/4=-1/4

-2x1/4=-1/2

Very easy

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Graph the system of equations. {4x+4y=16 x+6y=−6 Use the Line tool to graph the lines.

tatiyna

Answer:

The graph in the attached figure

Step-by-step explanation:

we have

$4x+4y=16$ -----> equation A

$x+6y=-6$ -----> equation B

we know that

The solution of the system of equations is the intersection point both graphs

In this problem

The intersection point is $(6,-2)$

therefore

The solution is the point $(6,-2)$

using a graphing tool

see the attached figure

5 0

3 years ago

Traffic along a stretch of road moves at an average speed that varies inversely with the number of cars on it. When there are 15

RSB [31]

Answer:

37.5 miles per hour

Step-by-step explanation:

The traffic along a stretch road moves at an average speed that carried inversely as the number of cars

Average speed= k/number of cars.

When there are 1,500 cars the average speed is 45

The first step is to calculate the constant k

45= k/1500

k = 1,500 × 45

k= 67,500

Therefore the average speed when there are 1,800 cars can be calculated as follows

Average speed= 67,500/1,800

= 37.5 miles per hour

Hence the average speed is 37.5 moles per hour

7 0

3 years ago

What is the total amount of paper, glass, and plastic waste not recovered

xenn [34]

Answer:

63,630,000 tons not recovered

Step-by-step explanation:

Paper generated = 71,310,000 tons

Paper recovered = 44,570,000 tons

Glass generated = 11,530,000 tons

Glass recovered = 3,130,000 tons

Plastics generated = 31,040,000 tons

Plastics recovered = 2,550,000 tons

Total generated = 113,880,000 tons

Total recovered = 50,250,000 tons

113,880,000 - 50,250,000 = 63,630,000 tons not recovered

8 0

3 years ago

Evaluate the expression: (-8/9) / (-2/3) * (-4 1/2)

navik [9.2K]

Answer:

-6

Step-by-step explanation:

7 0

3 years ago

Can you help me?!

geniusboy [140]

160/140 = x/56
cross multiply
(140)(x) = (160)(56)
140x = 8960
x = 8960/140
x = 64 lbs <== Vince's weight on the other planet

3 0

3 years ago

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