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3 years ago

2{ 5[7 + 4(17 - 9) - 22]}

Mathematics

1 answer:

gavmur [86]3 years ago

4 0

Answer:

170

Step-by-step explanation:

2{5[7+4(8) -22]}

2{5[7+32 - 22]}

2{5[39 - 22]}

2{5[17]}

2{85}

170

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3/2x+1/5=3/4 what is the answer

zvonat [6]

X= 30/11 I hope this is the way you wanted if no I will tell you the answer if you tell me how to do the question

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3 years ago

The product of 5 and a number x is 14 . What is the value of x?<br> 19/4<br> 1/20<br> 5/4<br> 4 3/4

Gennadij [26K]

Answer:

14/5 or 2 4/5.

Step-by-step explanation:

The equation is 5x = 14 and we need to solve for x.

Divide both sides of the equation by 5:

5x / 5 = 14/5

x = 2 4/5.

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3 years ago

A bag contains 15 marbles. The probability of randomly selecting a green marble is One-fifth. The probability of randomly select

dsp73

Given:

Total number of marbles = 15

Probability of randomly selecting a green marble = $\dfrac{1}{5}$ .

Probability of randomly selecting a green marble, replacing it, and then randomly selecting a blue marble = $\dfrac{2}{25}$ .

To find:

The number of blue marbles.

Solution:

Let the number of blue marbles be x.

$\text{Probability}=\dfrac{\text{Favorable outcomes}}{\text{Total outcomes}}$

$P(Blue)=\dfrac{x}{15}$

It is given that,

$P(Green)=\dfrac{1}{5}$

Probability of randomly selecting a green marble, replacing it, and then randomly selecting a blue marble is $\dfrac{2}{25}$ . So,

$P(Green)\times P(Blue)=\dfrac{2}{25}$

$\dfrac{1}{5}\times \dfrac{x}{15}=\dfrac{2}{25}$

$\dfrac{x}{75}=\dfrac{2}{25}$

Multiply both sides by 75.

$\dfrac{x}{75}\times 75=\dfrac{2}{25}\times 75$

$x=2\times 3$

$x=6$

Therefore, the number of blue marbles in the bag is 6.

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3 years ago

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Ghella [55]

Answer:

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Step-by-step explanation:

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3 years ago

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