Mathematics: 3. A bag contains red marbles, green marbles and blue marbles only.The ratio of the number of marbles of each colour isred: green : blue =12:5:2There are 112 more red marbles than green marbles.Work out the number of blue marbles.

3. A bag contains red marbles, green marbles and

Ответ:

lesly0913

02.06.2021

Mathematics

Step-by-step explanation:

Since there is 112 more red marbles than green marbles,

7 units= 112

1 unit= 112÷7= 16

2 units(no. of blue marbles)=16×2=32

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Ответ:

willijav000

04.07.2021

Mathematics

$\large\boxed{4x^4\sqrt[3]{2x^2}}$

Step-by-step explanation:

$\sqrt[3]{2x^5}\cdot\sqrt[3]{64x^9}\qquad\text{use}\ \sqrt[n]{ab}=\sqrt[n]{a}\cdot\sqrt[n]{b}\\\\=\sqrt[3]{2}\cdot\sqrt[3]{64}\cdot\sqrt[3]{x^5x^9}\qquad\text{use}\ a^n\cdot a^m=a^{n+m}\\\\=\sqrt[3]2\cdot4\cdot\sqrt[3]{x^2x^3x^9}\\\\=4\sqrt[3]2\cdot\sqrt[3]{x^2x^{12}}\\\\=4\sqrt[3]2\cdot\sqrt[3]{x^2x^{4\cdot3}}\qquad\text{use}\ (a^n)^m=a^{nm}\\\\=4\sqrt[3]2\cdot\sqrt{x^2(x^4)^3}\\\\=4\sqrt[3]2\cdot\sqrt[3]{x^2}\cdot\sqrt[3]{(x^4)^3}\qquad\text{use}\ \sqrt[n]{a^n}=a\\\\=4\sqrt[3]{2x^2}\cdot x^4\\\\=4x^4\sqrt[3]{2x^2}$

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3. A bag contains red marbles, green marbles and blue marbles only.
The ratio of the number of marbles of each colour is
red: green : blue =
12:5:2
There are 112 more red marbles than green marbles.
Work out the number of blue marbles.

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3. A bag contains red marbles, green marbles and blue marbles only.The ratio of the number of marbles of each colour isred: green : blue =12:5:2There are 112 more red marbles than green marbles.Work out the number of blue marbles.​

Ответ:

Ответ:

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Answers on questions: Mathematics

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3. A bag contains red marbles, green marbles and blue marbles only.
The ratio of the number of marbles of each colour is
red: green : blue =
12:5:2
There are 112 more red marbles than green marbles.
Work out the number of blue marbles.