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3 years ago

6

Three brothers Charlie Robert and Nicholas have 21 video games Charlie has twice as many games as Robert. Robert has 5 fewer gam

es than Nicholas what would be the equation

2 answers:

AVprozaik [17]3 years ago

5 0

Answer:

The equation would be $4x-15=21$ .

Step-by-step explanation:

Given;

Total Number of Video games = 21

Let the number of video game Nicholas has be 'x'.

Now Given:

Robert has 5 fewer games than Nicholas.

so we can say that;

number of video game Robert has = $x-5$

Also Given:

Charlie has twice as many games as Robert.

so we can say that;

number of video game Charlie has = $2(x-5)=2x-10$

we need to write the equation.

Solution:

Now we can say that;

Total Number of Video games is equal to sum of number of video game Nicholas has, number of video game Robert has and number of video game Charlie has.

framing the equation we get;

$x+x-5+2x-10=21\\\\4x-15=21$

Hence The equation would be $4x-15=21$ .

On Solving we get;

Adding both side by 15 we get;

$4x-15+15=21+15\\\\4x=36$

Dividing both side by 4 we get;

$\frac{3x}{4}=\frac{36}{4}\\\\x=9$

Hence Nicholas has = 9 video games

Robert has = $x-5= 9-5=4$ video games

Charlie has = $2x-10 = 2\times9-10=18-10=8$ video games

Lapatulllka [165]3 years ago

3 0

Answer:

The equation would be $4x-15=21.$

Step-by-step explanation:

Given:

Three brothers Charlie Robert and Nicholas have 21 video games Charlie has twice as many games as Robert. Robert has 5 fewer games than Nicholas.

Now, to find the equation.

Let the games Nicholas has be $x.$

Robert has games $x-5.$

And Charlie has $2(x-5).$

Now, the equation is:

$(x)+(x-5)+2(x-5)=21.$

$x+x-5+2x-10=21\\2x-5+2x-10=21\\4x-15=21$

$4x-15=21.$

Therefore, the equation would be $4x-15=21.$

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Answer:

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3 years ago

Score: 0 of 1 pt

marysya [2.9K]

The price of house is $185000.

Step-by-step explanation:

The percentage formula will be used for finding the price of the house

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4 years ago

What is the solution to -15x=90

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Answer:

x = - 6

Step-by-step explanation:

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*Remember that when you divide a negative number and a positive number, the result will be a negative answer.

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3 years ago

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kakasveta [241]

Answer:

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Step-by-step explanation:

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$\int \sec(\frac{x}{2})\tan^5({\frac{x}{2}})dx$

First, let's use substitution to get rid of the x/2. I'm going to use the variable y. So, let y be x/2. Thus:

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Therefore, the integral is:

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Now, as you had done, let's expand the tangent term. However, let's do it to the fourth. Thus:

$=2\int \sec(y)\tan^4(y)\tan(y)dy$

Now, we can use a variation of the trigonometric identity:

$\tan^2(y)+1=\sec^2(y)$

So:

$\tan^2(y)=\sec^2(y)-1$

Substitute this into the integral. Note that tan^4(x) is the same as (tan^2(x))^2. Thus:

$=2\int \sec(y)(\tan^2(y))^2\tan(y)dy\\=2\int \sec(y)(\sec^2(y)-1)^2\tan(y)dy$

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$u=\sec(y)\\du=\sec(y)\tan(y)dy$

Substitute:

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And, finally, C:

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3 years ago

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