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Alex73 [517]
3 years ago
15

Since i didn’t get an answer last time i’m asking again. answer parts A and B.

Mathematics
2 answers:
tester [92]3 years ago
7 0

Answer: X=0 Y=2 (equation has one solution)

Step-by-step explanation: starting with the second equation (y+2x=2) use transposition (or using the inverse operation) to move “2x” do the other side of the equation, this gives you y=-2+2

Now that you have an equation for Y plug it into the first equation (2y-6x=4) it’ll look like this: 2(-2x+2)-6x=4

Use distributive property: -4x+4-6x=4

Combine like terms: -10x+4=4

Use transposition again to move the “4” to the other side: -10x=0

Divide to get “x” by itself: x=0

NOW plug in the value of X into the equation you got for Y (y=-2x+2) it’ll look like this: y=-2(0)+2

Multiply 2 and 0: y=2

Zolol [24]3 years ago
3 0
A is x=1/3y + -2/3 for top one and x=-1/2y+1 for the bottom one
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A city manager made a scatter plot of the number or retail store in a certain city over the years. the scatter plot had a trend
Fiesta28 [93]

Answer:

155

Step-by-step explanation:

The problem sounds complicated, but it's not. Let's analyse.

The city manager have come up with an equartion y=11x +12, with Y is the total number of the stores and X stands for how long it has been since 2003.

We can't explain how the manager came up with this equation, so iwe don't need to think of if the equation is real or not. Let's just base on what we have.

Because the equation aboce is a trendy line, it means that it would likely to be true with any X ( number of years since 1990).

In Tracy's case, the year is 2003, so it has been 2003 - 1990 = 13 years since 1990. This is the X in the equation. Now we only need to find Y in the equation, which is the number of retail stores there were in 2003, exactly what the problem asks.

y= 11x + 12

=> In Tracy's case: y= 11*13 + 12= 155

So the number of retail stores there were in 2003 was 155

5 0
2 years ago
Which of the following expressions are equivalent to \dfrac{-10}{3}
andreyandreev [35.5K]

Answer:

B

Step-by-step explanation:

I don't know how to explain it, but I hope I got it right and that it helped you.

7 0
2 years ago
Read 2 more answers
Mrs. Backstrom built a small wooden box for her cat. The box has a length of one and one tenth feet, a width of 1.6 feet, and a
likoan [24]

Answer:

\text{Volume of cat box}=3.52\text{ ft}^3

Step-by-step explanation:

We have been given that Mrs. Backstrom built a small wooden box for her cat. The box has a length of one and one tenth feet, a width of 1.6 feet, and a height of 2 feet. We are asked to find the volume of the box.

Let us convert one and one tenth feet into decimal.

1\frac{1}{10}=\frac{11}{10}=1.1

Since the cat box is in form of cuboid, so its volume will be equal to the product of length, width and height as:

\text{Volume of cat box}=1.10\text{ ft}\times 1.6\text{ ft}\times 2\text{ ft}

\text{Volume of cat box}=3.52\text{ ft}^3

Therefore, the volume of the cat box is 3.53 cubic feet.

8 0
3 years ago
Find the common ratio of the geometric sequence -20, 140, -980, ...
aksik [14]

Answer:

-7

Step-by-step explanation:

-20  × -7 = 140

140 × -7 = -980

3 0
3 years ago
3x-y= 17<br> -x+y= -7<br><br> Help please
AlexFokin [52]

Answer:

y = -2

x = 5

Step-by-step explanation:

3x - y = 17

-x + y = -7

here we can find the sum of the two equations

2x = 10

x = 5

now we can just plug in the value of x to find y

-(5) + y = -7

y = -2

8 0
2 years ago
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