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Goshia [24]
2 years ago
4

What is the solution of this system of linear equations? 3y = 3 y equals StartFraction 3 over 2 EndFraction x plus 6.x + 6 y – S

tartFraction one-half EndFraction y minus StartFraction 1 over 4 EndFraction x equals 3.x = 3 (3, 6) (2, 1) no solution infinite number of solutions
Mathematics
3 answers:
IRINA_888 [86]2 years ago
9 0

Answer:

No Solution

Step-by-step explanation:

The given set of equations is:

3y=\frac{3}{2}x+6\\\\ \frac{1}{2}y-\frac{1}{4}x=3

Dividing first equation by 3, we get:

y=\frac{1}{2}x+2

Substituting this value of y in second equation, we get:

\frac{1}{2}(\frac{1}{2}x+2)-\frac{1}{4}x=3\\\\  \frac{1}{4}x+1-\frac{1}{4}x=3\\\\   1=3

Which is not true.

Thus, substituting one equation into another result into a False result, from here we can conclude that the given system of equations has No Solution and this is because two lines are parallel and they will never meet at any point.

LekaFEV [45]2 years ago
3 0

Answer:

c

Step-by-step explanation:

Guest1 year ago
0 0

first one, No solution

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There are 520 marbles in a jar. The ratio of red to yellow marbles is 3:4 and the ratio of yellow to blue marbles is 2:3. What i
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Answer:

Step-by-step explanation:

Change the 2/3 to 4/6

Now the ratio becomes 3:4:6

So the number of each is

3x + 4x + 6x = 520

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2 years ago
jack bought 4 rulers and 5 compasses for $18.92 altogether. If Jacks brother bought 2 rulers and 4 compasses for $14.98, what wa
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Answer:

Price of each compass = $3.68

Price of each ruler = $0.13

Step-by-step explanation:

Let R denote rulers and C denotes compasses

Jack bought 4 rulers and 5 compasses for $18.92

which algebraically translates to

4R + 5C = 18.92   eq. 1

Jack's brother bought 2 rulers and 4 compasses for $14.98

which algebraically translates to

2R + 4C = 14.98   eq. 2

Now we have two equations and two unknowns R and C

Choose any of the above equation and make any of the unknown the subject of the equation.

Choosing eq. 1

4R + 5C = 18.92

4R = 18.92 - 5C

R = (18.92 - 5C)/4    eq. 3

Now put this value of R into eq. 2

2R + 4C = 14.98

2((18.92 - 5C)/4) +4C = 14.98

9.46 - 2.5C + 4C = 14.98

1.5C = 5.52

C = 5.52/1.5

C = 3.68

So the price of each compass is $3.68

We can verify whether our answer is right or not. First we have to find the cost of R

Put this value of C into eq. 3

R = (18.92 - 5C)/4

R = (18.92 - 5*3.68)/4

R = (18.92 - 18.4)/4

R = 0.52/4

R = 0.13

So the price of each ruler is $0.13

Now let us verify:

from eq. 1

4R + 5C = 18.92

4(0.13) + 5(3.68) = 18.92

0.52 + 18.4 = 18.92

18.92 = 18.92  (hence proved)

from eq. 2

2R + 4C = 14.98

2(0.13) + 4(3.68) = 14.98

0.26 + 14.72 = 14.98

14.98 = 14.98  (hence proved)

7 0
2 years ago
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