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3 years ago

Find a solution to the following system of equations -2x+5y=8 2x+2y=6

2 answers:

5 0

If you add the two equations together the xs cancel out leaving:

7y=14

y=2, using this y in 2x+2y=6 gives you:

2x+4=6

2x=2

x=1

so the solution to the system is the point (1,2)

Anton [14]3 years ago

3 0

1. x =1 and y =1.4
2.x=1.5 and y=1.5
just to say if this is not the answer you got then your answer is different but don't think that your answer or my answer or others answer is wrong(just because they are different) because this equation can have lot's of answer and if you don't believe me then calculate all the different answer.

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If x= -5+6i and y= 3-2x, then which of the following is the value of the expression 4x-y

Verizon [17]

$y=3-2x\\\\4x-y=4x-(3-2x)=4x-3+2x=6x-3\\\\\text{Put}\ x=-5+6i\ \text{to the expression}\ 6x-3:\\\\6(-5+6i)-3\qquad\text{use distributive property}\\\\=(6)(-5)+(6)(6i)\\\\=-30+36i\\\\Answer:\ \boxed{4x-y=-30+36i}$

6 0

3 years ago

Danielle drives from her home to the store at an average speed of 40 miles per hour. She returns home along the same route at an

wolverine [178]

she drove 40 mph & 60 mph

60 +40 = 100

100/2 = 50

so she drove an average of 50 mph

5 0

3 years ago

Which polynomial is in standard form?

Elina [12.6K]

the

first equation is the answer of this question.

explanation

where the xy is in sequence so it is the standard form of polynomial

8 0

2 years ago

LMN is a straight angle. What is the measure of ZOMP? Pls answer ASAP!

zavuch27 [327]

Answer:

<OMP = 76 degrees

Step-by-step explanation:

since LMN is a straight angle, the angles must all add up to 180 degrees.

so 37 + 67 = 104

180 - 104=76 degrees

3 0

3 years ago

In the table adam recorded the miles he travled each day while traveling from Florida to California. Calculate the average rate

blagie [28]

Hi!

To calculate the rate of change between days 4 and 6, we simply take those points, (4, 1503) and (6, 2196) and use the equation in the picture below:

Now, when we plug it in the equation, it looks like this:

$\frac{2196-1503}{6-4} = \frac{693}{2} = 346.5$

Therefore, your answer is 346.5 or, rounded, 347.

Meaning, your answer is C

Hope this helps and have a great day! :D

5 0

3 years ago