Question

please answer this..

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Answer 1

Answer:

We can write this out as an algebraic formula. Let X = the weight of the brick.

X = 1 + 1/2 * X

What we want is to have X alone on one side of the equation with no other X’s on the other side. To do this, let’s first multiply both sides of the equation by 2. We can add to, subtract from, multiply, or divide equations all we want as long as we do the same operation to both sides.

2 * (X) = 2 *(1 + 1/2 * X)

2 * X = 2 + X

Now let’s subtract X from both sides.

2 * X - X = 2

X = 2

Answer 2

$\huge\mathbb\fcolorbox{Green}{violet}{♡ᎪղՏωᎬя᭄}$

If the last digit is 1,3,7,9 in the product then we can only select numbers whose last digit is 1,3,7 or 9 from 0,1,2,.9

➪ Probability that a selected number ends with 1,3,7 or 9 = 10/4

=5/2

➪ Probability of selecting four such numbers =( 5/2 )^ 4

=225/16

︎︎︎Hence proved.

Option d) 16/225 is the correct answer for your question.

Learn More:-

How to calculate probability :')

Determine a single event with a single outcome.

Identify the total number of outcomes that can occur.

Divide the number of events by the number of possible outcomes.

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