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Law Incorporation [45]
3 years ago
14

What is the equation for 4 times the number of cows plus 2 times the number of ducks is 20

Mathematics
1 answer:
lord [1]3 years ago
5 0

Let c,d be the number of cows and ducks, respectively.

So, 4 times the number of cows is 4c, and 2 times the number of ducks is 2d. Together, they are 4c+2d

This has to equal 20, so the equation is

4x+2d=20

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15 points. Attached the question<br>​
Vanyuwa [196]

Answer:

3

Step-by-step explanation:

(2x +1)/8 - (x-1)/3 = 5/24

multiple the 2x+1/8 by 3 and multiple (x-1)/3 by 8 then add them up

6x+3/24 - 8x-8/24 ➡ 6x-8x+11/24 = 5/24

➡ -2x+11 = 5

➡ -2x = 5-11

➡ x = 3

4 0
3 years ago
Express in exponential form. log3 27 = 3
ollegr [7]

Hey!

Hope this helps...

~~~~~~~~~~~~~~~~~~~~~~~~~~~

How you right ANY log in Exponential form is like this:

Log_x Z = y

x^y = Z


So...

Log_3 27 = 3

3^3 = 27 would be your answer...

4 0
3 years ago
Read 2 more answers
Can anyone help me find the value please?
AURORKA [14]

Answer:

the answer is x=15 cm

Step-by-step explanation:

here the above given figure is a rectangle ABCD with diagonals AC and BD measuring AC= (x+10)cm and BD=(3x-20) cm

Now,

AC=BD

or, 3x-20 = x+10 [ diagonals of a rectangle are equal]

or, 2x = 30

or, x= 15 cm

I HOPE IT WILL HELP YOU!!!

5 0
3 years ago
I need help on this question!!!ASAP!!!
MrMuchimi

Answer:

6 1/2

Step-by-step explanation:

1 1/2 times 3 for 3 days = 4 1/2 + 2 = 6 1/2 So, the answer wold be 6 1/2 hours or 6.5 hours.

8 0
3 years ago
Math Help PLZ!!!!!!!!!
VMariaS [17]

Answer: C

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

 f(x) =   2x + 1  ⇒       2x + 1

<u>- g(x) = -(x² - 7) </u>⇒  <u>-x²     + 7 </u>

              (f-g)(x) = -x² + 2x + 8

4 0
3 years ago
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