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Goshia [24]
3 years ago
12

How do i expand 4(3x 5)?

Mathematics
1 answer:
Sloan [31]3 years ago
3 0
4(3x 5) multiply everything by 4 12x+20
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De 1 kg de queso se utilizaron 1/5 gramos para hacer una pizza y ½ para una tarta ¿Cuántos gramos de queso quedaron? ¿Existe más
Mumz [18]

Answer:

Se usaron 700 g de queso, quedando 300 g de queso.

Step-by-step explanation:

Si se usó 1/5 más 1/2 de queso, el total usado fue:

\frac{1}{5}+\frac{1}{2}=\frac{7}{10}    

Entonces, se usó 7/10 del kg inicial de queso. Sabiendo que:

1 kg      ------ 1000 g

7/10 kg ------ x g

Entonces x = 700 g, lo que significa que se usaron 700 g de queso, quedando 300 g de queso.

Este problema se puede resolver utilizando una regla de tres, como se hizo aquí, o mefiante razones, en una equacion lineal.

Espero te haya sido de ayuda!

4 0
3 years ago
Rewrite 2tan3x in terms of tanx
blsea [12.9K]
2\tan3x=2\tan(2x+x)=\dfrac{2\tan2x+2\tan x}{1-\tan2x\tan x}

Use the same identity to expand \tan2x.

\tan2x=\tan(x+x)=\dfrac{\tan x+\tan x}{1-\tan x\tan x}=\dfrac{2\tan x}{1-\tan^2x}

\implies2\tan3x=\dfrac{2\dfrac{2\tan x}{1-\tan^2x}+2\tan x}{1-\dfrac{2\tan x}{1-\tan^2x}\tan x}
2\tan3x=\dfrac{2\tan x\left(\dfrac2{1-\tan^2x}+1\right)}{1-\dfrac{2\tan^2x}{1-\tan^2x}}
2\tan3x=\dfrac{2\tan x\left(2+1-\tan^2x\right)}{1-\tan^2x-2\tan^2x}
2\tan3x=\dfrac{2\tan x(3-\tan^2x)}{1-3\tan^2x}
4 0
3 years ago
Help... WILL GIVE BRAINLESSLY <br><br><br> what is 1029 divided by 89/9 and added to 88910333????
mixer [17]

Step-by-step explanation:

88910334.2834 that is the hard answer

7 0
2 years ago
Masada sold his radio to Agouti at sh 63,000 making a loss of 10%.
Viefleur [7K]

Given:

Selling price of radio for Masada = 63,000

Loss = 10%

To find:

The amount of money Masada paid for the radio?

Solution:

Let x be the amount of money Masada paid for the radio.

According to the question,

x-10\%\text{ of }x=63000

x-\dfrac{10}{100}x=63000

x-0.1x=63000

0.9x=63000

Divide both sides by 0.9.

x=\dfrac{63000}{0.9}

x=70000

Therefore, Masada paid 70,000 for the radio.

4 0
3 years ago
Which is the graph of x – y = 1?
Volgvan

Answer:

Step-by-step explanation:

Hope you can see it.

6 0
2 years ago
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