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deff fn [24]
2 years ago
7

The perimeter of the triangle is 202cm. Using that find the value of x

Mathematics
2 answers:
IgorLugansk [536]2 years ago
8 0

Answer:

x = 13

Step-by-step explanation:

3x + 12 + 5x + 16 + 4x + 18 = 202

combine like terms

12x + 12 + 16 + 18 = 202

12x + 46 = 202

<u>        -46     -46 </u>

12x = 156

divide by 12

x = 13

<em><u>Hope this helped! Have a nice rest of ur day! Plz mark as brainliest!!!</u></em>

<em><u>-Lil G</u></em>

laila [671]2 years ago
3 0

Add all the sides together (don´t forget parenthesis) Put the x´s with the x´s and the same with the other numbers. The subtract additional numbers from the total. The divide what left from the number in front of the x.

(3x + 12) + (5x + 16) + (4x + 18) = 202

8x + 28 + (4x + 18) = 202

12x + 46 = 202

      - 46     -46

12x = 156

/12      /12

x = 13

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IRISSAK [1]

Invoice Date = January 17

• First terms:

8/10 and n/40

This means the final discount can be availed "10" days from Invoice Date (Jan17)

So, it will be:

Jan 17 + 10 days = January 27

Final Discount Date = Jan 27

The net payment date will be "n/40", which is 40 days from invoice date, thus

Net payment date will be:

Jan 17 - Jan 31 = 14 days

Feb 1 - Feb 26 = 26 days

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40 days

Payment Date = Feb 26

• Second terms:

6/20 and n/40

This means the final discount can be availed "20" days from Invoice Date (Jan17)

So, it will be:

Jan 17 + 20 days = Feb 6

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Payment Date = Feb 26

• Third terms:

4/30 and n/40

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So, it will be:

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6 0
1 year ago
Show me five numbers that are at least 8 digits long under standard form
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Express the situation as a system of two equations in two variables. Be sure to state clearly the meaning of your x- and y-varia
expeople1 [14]

Answer:

9 TV ads and 20 radio ads

Step-by-step explanation:

He has $37,000 to spend. He has to sum that amount of money between the TV and radio ads. Each TV ad costs $3000 while each radio ad costs $500, so the equation that represents that is 37000 = 3000x  + 500y  

The same happens with the amount of voters he needs to reach, the equation is 130000 = 10000x + 2000y

The system that represents this is

\left \{ {{3000x+500y=37000} \atop {10000x+2000y=130000}} \right.

And the augmented matrix is

\left[\begin{array}{cc|c}3000&500&37000\\10000&2000&130000\end{array}\right]

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\left[\begin{array}{cc|c}1&1/6&37/3\\1&1/5&13\end{array}\right]

Then we multiply the second row by (-1) and we add the first row:

\left[\begin{array}{cc|c}1&1/6&37/3\\0&-1/30&-2/3\end{array}\right]

Now we multiply the second row by -30:

\left[\begin{array}{cc|c}1&1/6&37/3\\0&1&20\end{array}\right]

Finally, to the first row we add the second one multiply by (-1/6):

\left[\begin{array}{cc|c}1&0&9\\0&1&20\end{array}\right]

So, x = 9 and y = 20

That means 9 TV and 20 radio ads will contact 130,000 voters using the allocated funds

3 0
3 years ago
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