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Liono4ka [1.6K]
3 years ago
6

Which is the best approximate solution of the system of linear equations y = 1.5x – 1 and y = 1?

Mathematics
2 answers:
Lostsunrise [7]3 years ago
8 0

Answer:

The best approximate solution of the system of linear equations is (1.3,1).

Step-by-step explanation:

Given : The linear equations y=1.5x-1 and y=1

To find : Which is the best approximate solution of the system of linear equations ?

Solution :

The solution is given by substituting the value of y in the equation,

y=1.5x-1

Put y=1,

1=1.5x-1

1+1=1.5x

1.5x=2

x=\frac{2}{1.5}

x=1.33

The best approximate solution of the system of linear equations is (1.3,1).

pychu [463]3 years ago
4 0
1.33.1 that the answer you have to mutiply
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I need some help with this one question
monitta

Yo sup??

Number of goldfish=3

Number of turtles=1

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Fraction of goldfish=3/4

Therefore the correct answer is option 4

Hope this helps

4 0
3 years ago
Use a separate sheet of paper to solve the system of inequalities by graphing. Use the graph to decide if the point (1, –1) is i
Lena [83]

Answer:

The answer is no though, the point (1,-1) is below both.

Step-by-step explanation:

So the two inequalities are y≤-3x+3 and 3x+8y≥3

With inequalities you have to know a few things.  First, when you graph you may have to use non solid lines.  for instance, if you had x<5, 5 would not be part of the answer because it is only answers less than 5.  so you represent this by making a dashed line that says "you cannot include values on this line".  Second, with algebra, if you multiply both sides by a negative it flips the inequality.  for instance -y > 54 you would multiply (or divide) by -1 and it would change to y < -54.  Third, when graphing an inequality, treat it like an equation and graph the line as if it were said equation(with solid or dashed lines as needed)  then, if it is y > f(x) you shade in the section above the line and y < f(x) shades in below.  The shaded part is your answer basically.  Now lets get into yours.

y≤-3x+3

It is already in the form y = f(x)  so grapht he line 3x + 3 with a solid line since it is y is less than or equal to,  then shade below that line.  

3x+8y≥3

First get it so y is by itself

3x+8y≥3

8y≥3 - 3x

y ≥ 3/8 - 3/8 x

Now grapht his line  with a solid line and shade the area above it.

Now, the shaded area below between y ≥ 3/8 - 3/8 x and  y≤-3x+3 and the lines are your answer, so you need to check if the point (1, -1) is in this shared shaded area or on one of the lines.

The answer is no though, the point (1,-1) is below both.

6 0
3 years ago
A man wants to test for diabetes. His family history shows that the probability of getting diabetes is 0.6. He decides to do a h
lesantik [10]
So,

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The correct option is D.
8 0
2 years ago
Solve using proportions.
denis23 [38]

Answer:

7.8 = k

Step-by-step explanation:

Since the figures are similar, we can use proportions

c           k

----- = -------

b            j

Substituting the values in

6.5         k

----- = -------

4          4.8

Using cross products

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Divide each side by 4

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3 0
2 years ago
Power is _____.
Viefleur [7K]

Answer:

the rate at which work is done.

Step-by-step explanation:

I believe that's the answer specifically in physics.

6 0
3 years ago
Read 2 more answers
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