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Degger [83]
3 years ago
7

Solve by elimination 5x-14y=22 -6x+7y=3

Mathematics
1 answer:
Airida [17]3 years ago
3 0
5x - 14y = 22 ⇒   5x - 14y = 22
-6x + 7y =  3  ⇒ <u>12x - 14y = -6</u>
                                    <u>-7x</u> = <u>28</u>
                                     -7     -7
                                       x = -4
                            5x - 14y = 22
                         5(-4) - 14y = 22
                           -20 - 14y = 22
                         <u>+ 20           + 20</u>
                                  <u>-14y</u> = <u>42</u>
                                  -14    -14
                                       y = -3
                                  (x, y) = (-4, -3)
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irina1246 [14]
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4 0
2 years ago
a vendor bought n dozen eggs at the rate of 22.6 of the rotating he sold the remaining acts at the rate of 2.50 per act find his
babymother [125]

Answer:

Your question was a bit confusing so I found another related question. You can reference it with your own details.

A vendor bought 10 dozen eggs at the rate of Rs 22 per dozen. Six of the eggs were rotten. He sold the remaining eggs at the rate of Rs 2.50 per egg . Find his profit or loss

Vendor bought 10 dozen eggs which means the vendor bought:

= 10 * 12 eggs

= 120 eggs

6 were rotten and he sold the rest for Rs. 2.50 per egg.

= (120 - 6) * 2.5

= Rs. 285

The amount he spent on the eggs was:

= 10 dozen * 22

= Rs. 220

Profit = 285 - 220

= Rs. 65

7 0
3 years ago
Vectors...<br><br> Let u = &lt;-3, -5&gt;, v = &lt;-3, 1&gt;. Find u + v.
Anni [7]
-3 + -3 = 0
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vector = < 0,-4 >
3 0
3 years ago
Alicia says that 6 ÷ 2 + 5 is the same as 5 + 6 ÷ 2. Is Alicia correct or incorrect? Explain.
serg [7]

Answer:

alicia is right

Step-by-step explanation:

if u divide 6 by 2 that would be 3 and then add 5 = 8. If you do the same with the next equation it still = 8 bc pemdas so divide first

4 0
3 years ago
Read 2 more answers
Help me out please! Any unrelated answers will be reported, so don't try :)
timama [110]

Try doing A, 2/3 Hopefully it helps you, I'm not good with fractions.

8 0
3 years ago
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