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Andreyy89
3 years ago
7

2y+X-4=0 what is the answer

Mathematics
2 answers:
vodomira [7]3 years ago
7 0
YX=2, I assume you need to get the 'X' and 'Y' alone. Also just for future reference, you're trying to get variables alone and all the numbers on the other side. Lastly, whatever you do to one side you do to the other. Good luck!
melisa1 [442]3 years ago
4 0
X = 4 + -2y  Simplifying<span>2y + x + -4 = 0 Reorder the terms: -4 + x + 2y = 0 Solving -4 + x + 2y = 0 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '4' to each side of the equation. -4 + x + 4 + 2y = 0 + 4 Reorder the terms: -4 + 4 + x + 2y = 0 + 4 Combine like terms: -4 + 4 = 0 0 + x + 2y = 0 + 4 x + 2y = 0 + 4 Combine like terms: 0 + 4 = 4 x + 2y = 4 Add '-2y' to each side of the equation. x + 2y + -2y = 4 + -2y Combine like terms: 2y + -2y = 0 x + 0 = 4 + -2y x = 4 + -2y Simplifying x = 4 + -2y

</span>
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On average the number of electronic keyboards sold in New York each year is 75,072, which is eight times the average number of e
ser-zykov [4K]

Answer:

9,384 electronic keyboards.

Step-by-step explanation:

<u>Question asked:</u>

How many electronic keyboards, on average, are sold each year in Alaska?

<u>Solution:</u>

Let number of electronic keyboards, on average, are sold each year in Alaska = x

<u>Given:</u>

The number of electronic keyboards sold in New York is eight times the average number of electronic keyboards sold each year in Alaska:-

On an average, keyboards sold in New York = 8 times that of Alaska

75,072 = 8\times x\\ \\  75,072=8x\\ \\ Dividing\ both \ sides\ by\ 8\\ \\ \frac{75072}{8} =\frac{8x}{8} \\ \\ 9384=x

Therefore, 9,384 electronic keyboards, on average, are sold each year in Alaska.

6 0
3 years ago
((-3, 2)
Paladinen [302]

Answer:

3x + 5y= 9 is the answer ...

3 0
3 years ago
A gardener is distributing equal amounts of soil into pots. He has 12 kilograms of soil and he wants to put 1/3 of a kilogram in
CaHeK987 [17]

Answer:

36 pots

Step-by-step explanation:

If the gardener has 12kg and wants to put 1/3 in each pot, he would have to divide the 12 kilos by 1/3 kg

12 ÷ 1/3 =

12 x 3 = 36 pots

6 0
3 years ago
JAB Consulting received a promissory note of $13,500 at 7% simple interest for 15 months from one of its customers. After 6 mont
Tasya [4]

Answer:

Amount = $14,024 (Approx)

Step-by-step explanation:

Given:

Amount received P = $13,500

Rate r = 7% = 0.07

Time t = 15 month = 15/12 = 1.25 = year

Discount rate = 6% = 0.06

Computation:

Maturity value = P[1+rt]

Maturity value = 13,500[1+(0.07)(1.25)]

Maturity value = $14,685.61

Time = 15 month - 6 month

Time = 9 month = 9/12 = 0.75 year

Amount = MV[1-dt]

Amount = 14,685.61[1-(0.75)(0.06)]

Amount = $14,024 (Approx)

7 0
3 years ago
David can finish painting the room in six hours and his elder brother Anthony can finish it in four hours if both brothers paint
lbvjy [14]

Answer:

2.4 hours

Step-by-step explanation:

David's time = 6 hours

Anthony's time = 4 hours

the combined time is given by the following formula

1/ (david's time) + 1/(anthony's time) = 1/total time

1/6 + 1/4 = 1/Total

4/24 + 6/24 = 1/Total

10/24 = 1/ total   (taking reciprocal of both sides)

24/10 = total

total time = 24/10 = 2.4 hours

5 0
3 years ago
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