All categories

3 years ago

Find the value of the following if x = -1 and y = -3: 2x-4y_

Mathematics

1 answer:

Ahat [919]3 years ago

3 0

2(-1)-4(-3)
-2-(-12)
-2+12=10

(-1)2+(-3)
1-3=-2

You might be interested in

Convert into decimals (use your calculator): a) 6/38 b) 45/55 c) 4/28 d) 35/28 e) 1030/2030

Delicious77 [7]

Answer:

$a.\hspace{3} \frac{6}{38} = 0.15789474\\\\b.\hspace{3} \frac{45}{55} = 0.81818181\\\\c.\hspace{3} \frac{4}{28} = 0.14285714\\\\d.\hspace{3} \frac{35}{28} = 1.25\\\\e.\hspace{3} \frac{1030}{2030} = 0.50738916$

Step-by-step explanation:

Rational numbers, expressed as decimal numbers, are obtained from the operation of division between the integer of the numerator and the integer of the denominator. Then:

$a.\hspace{3} \frac{6}{38} = 6\div38 = 0.15789474\\\\ b.\hspace{3} \frac{45}{55} = 45\div55 = 0.81818181\\\\c.\hspace{3} \frac{4}{28} = 4\div28 = 0.14285714\\\\ d.\hspace{3} \frac{35}{28} = 35\div28 = 1.25\\\\ e.\hspace{3} \frac{1030}{2030} = 1030\div2030 = 0.50738916$

3 0

3 years ago

Yes I wanted to know what is the answer

jek_recluse [69]

Answer:

14 flats

5 plants

Step-by-step explanation:

First you would do 89/6 but since that doesn’t divide nicely you can do 90/6 to get 15 then subtract 1 since the original number was 89 and you would get 14

The 14 times 6 would get you 84

Then subtract 84 from 89 and you get 5 plants left over ^^

7 0

3 years ago

What is the interest rate?<br><br>A) 1<br><br>B) 2<br><br>C) 4<br><br>D) 300

liubo4ka [24]

Answer:

I need more information to calculate it for you

5 0

3 years ago

Read 2 more answers

Find the volume: A cone with a diameter of 16cm and a height of 16cm.

soldier1979 [14.2K]

<h2><em>The formula for a cone is in the attachment below. Substitute Pie for 3.14.</em></h2><h2><em>3.14 x 8 x 8 x 16/3 = 1071.78667. You can round this up and you get 1072.33.</em></h2><h2><em></em></h2><h2><em>Final Answer: 1072.33cm^3</em></h2><h2><em>Hope this helps and have a nice day! o/</em></h2>

6 0

3 years ago

For which equation is x = 5 a solution?

Setler [38]

Answer:

32−4x=12

Step-by-step explanation:To be honest I dont think I have a good explanation but I do know my answer is acurate.

7 0

3 years ago

Find the value of the following if x = -1 and y = -3: __2x-4y___

Find the value of the following if x = -1 and y = -3: 2x-4y_