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klemol [59]
3 years ago
5

Solving equations 3y = 5 1/2

Mathematics
2 answers:
emmainna [20.7K]3 years ago
8 0

Answer:

y=11/6

Step-by-step explanation:

You have to isolate the variable by dividing each side by factors that don't contain said variable.

Alex_Xolod [135]3 years ago
5 0

Answer:

y = 1.83

Step-by-step explanation:

3y = 5 1/2

In this question, it says 3 multiply something equals 5 1/2

To find what the unknown number is, we have divide 5 1/2 by 3, which will give us the unknown value

____________________________________________________________

5 1/2 = 5.5

y = Unknown number

____________________________________________________________

5.5/3 = 1.83

Answer = 1.83

____________________________________________________________

Check Answer

3 x 1.83 = 5.49

Round to nearest tenths

5.49 = 5.5

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bearhunter [10]

Answer:

x = 104° because they are alternate interior angles and alternate interior angles are equal

Step-by-step explanation:

4 0
3 years ago
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Three brothers Charlie Robert and Nicholas have 21 video games Charlie has twice as many games as Robert. Robert has 5 fewer gam
AVprozaik [17]

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

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3 years ago
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Solve the following system of equations using substitution.<br><br> 4x + 2y = 12<br> x = y + 3
BigorU [14]

Answer:

x = 3

y = 0

Step-by-step explanation:

The method of substitution is when one solves an equation for one of the variables, and then substitutes the expression into the other equation. After doing so, one will solve the other equation for the remaining variable and then backsolve for the first variable.

4x + 2y = 12

x = y + 3

The second equation is already sovled for parameter (x), subttiute this into the other equation,

4(y + 3) + 2y = 12

Distribute,

4y + 12 + 2y = 12

Simplify,

6y + 12 = 12

Inverse operations,

6y + 12 = 12

-12

6y = 0

/6

y = 0

Backsolve for (x), substitute the value of (y) into the equation for (x) and solve,

x = y + 3

x = 0 + 3

x = 3

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3 years ago
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What is 7643.63 rounded to the nearest dollar?
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Answer:

7644

Step-by-step explanation:

Hope this helps!

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