All categories

3 years ago

Jordan wrote the equation for a linear relationship as y = -8x - 4. For what value of x is y equal to -20? *

Mathematics

2 answers:

Shtirlitz [24]3 years ago

6 0

Answer:

x = 2

Step-by-step explanation:

Given

y = - 8x - 4 ← let y = - 20 in the equation

- 20 = - 8x - 4 ( add 4 to both sides )

- 16 = - 8x ( divide both sides by - 8 )

2 = x

mash [69]3 years ago

5 0

Answer:

Step-by-step explanation:

y=-20

-20=-8x-4

-16=-8x

x=2

You might be interested in

Work out these questions without a calculator and showing all working out

natima [27]

1) 6÷0.2 = 30

If 6/2=3 then 6/0.2=30 as the decimal place shifts one place.

2)8÷0.1 = 80

8/1=8 so shift the decimal place over once to make 80.

3)9÷0.3 = 30

9/3=3 so shift the decimal place over once to get 30.

4)4÷0.04 = 100

4/4=1 so shift the decimal place over twice to get 100.

5)7÷0.002 = 3500

7/2=3.5 so shift the decimal place over three times to get 3500

6)0.718÷0.2 = 3.59

718/2=359 so shift the decimal over three places for the 0.718 and then back over once for the 0.2

7)0.0141÷0.003 = 4.7

141/3=47 so shift the decimal over our times for the 0.0141 and then back over three times for the 0.003

8)0.24÷0.012 = 20

24/12=2 so shift the decimal point over once twice for 0.24 then back over three times for 0.012

9)1.625÷0.0013 = 1250

1625/13=125 so shift the decimal point over three times for the 1.625 and then back four times for the 0.0013

10)47.1÷0.15 = 314

471/15=31.4 so shift the decimal point over once for the 47.1 and then back over twice for the 0.15.

Hope this helps :)

3 0

3 years ago

The figure is the net for a rectangular prism.

svetoff [14.1K]

$sa = 2(lw + lh + wh)$

$sa = 2(8 \times 6 + 8 \times 16 + 6 \times 16)$

$sa = {544 \: cm}^{2}$

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

I hope that helps you out!!

Any more questions, please feel free to ask me and I will gladly help you out!!

~Zoey

4 0

3 years ago

Read 2 more answers

Replacing one regular light bulb with a

galina1969 [7]

Answer:

3789 pounds of carbon dioxide

multiply 151.56 by 25

8 0

3 years ago

Read 2 more answers

A regular octagon has side lengths of 8 centimeters. What is the approximate area of the octagon?

lara31 [8.8K]

Answer:

The answer is B if the octagon has side lengths of 8

5 0

2 years ago

I need help urgent plz someone help me solved this problem! Can someone plz help I’m giving you 10 points! I need help plz help

poizon [28]

Answer: Delete the point (0, 4)

<u>Step-by-step explanation:</u>

Your line for y = (1/3)x + 4 is correct.

m=1/3 b=4

Start at (0, 4) and draw a line through a point up 1 and 3 to the right (3, 5).

Your line for x = 6 is correct.

A vertical line through (6, 0), (6, 1), (6, 2), ...

Your point for (6, 6) is correct.

x=6, y=6

Your error is that you used the dot tool to plot a point for (0, 4). You DO need this point to create the line y = (1/3)x + 4, however the instructions do not state to mark this coordinate with a dot.

6 0

4 years ago