Solve the system of equations using elimination. How many solutions does the system have?

15j + 12k = 18
5j + 4k = 6
Responses

A. One solution, j = 3, k = 3

B. No solution

C. One solution, j = 10, k = 8

D. Infinitely many solutions

Answers

Answer 1

Answer:

I hope it helps u

Step-by-step explanation:

Let's solve your system by elimination.

15j+12k=18;5j+4k=6

Multiply the second equation by -3, then add the equations together.

(15j+12k=18)

−3(5j+4k=6)

Becomes:

15j+12k=18

−15j−12k=−18

Add these equations to eliminate j:

0=0

Answer:

Infinitely many solutions

Note:  Please Brain-list it ok dear!

If u have any doubt you can ask ok


Related Questions

Convert 15 kilometers per hour to meters per second.

25 meters per second
4.2 meters per second
54 meters per second
9 meters per second

Answers

Answer:

54

Step-by-step explanation:

multiply the speed value by 3.6

Answer:

The answer above is wrong!! The right answer is actually 4.2 Meters per second

Step-by-step explanation:

When I put 54 the question came up as wrong but when I put 4.2 it showed up as right :)

A histogram titled Number of payphones has date on the x-axis and payphones on the y-axis. From 1981 to 1985 there were 160 payphones, 1986 to 1990: 190, 1991 to 1995: 200, 1996 to 2000: 210, 2001 to 2005: 55, 2006 to 2010: 45.
The histogram shows the number of payphones that were active by year in a large city. How many payphones would you expect to be active between 1976 and 1980?

A.) over 200
B.) between 150 and 200
C.) between 50 and 100
D.) fewer than 50

Answers

Answer:

b

Step-by-step explanation:

this is the most likely answer because from '81 to '00 there were between 150-200, so it is also likely in this range

The correct answer is B


Show workkk pleasee and don’t answer if u don’t know

Answers

Answer:

Step-by-step explanation:

As we know that ,

m^a  =  1/(m^8)

hence using a law of exponent ,

m^a= m^-8

now bases are same then power will be also same ,hence

a=-8

please  

Brain-list it or support me at my U-Tube channel " ZK SOFT&GAMING " I will be thankful

A bake sale has 5 brownies for sale. Each brownie was cut into 4 slices. Each slice was sold for $7. What was the total amount earned for the sale of all the brownies?

Answers

Answer:

140

Step-by-step explanation:

5 times 4 is 20 which is the amount of browiners 20 times 7 is 140

Answer:

140$

Step-by-step explanation:

muliplication

4x5=20

20x7=140

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Answers

Answer:

c) πr2h is the answer

Step-by-step explanation:

I need this answered but it needs to be answered using PEMDAS Number two please

Answers

Answer:

4

Step-by-step explanation:

10 / 2 + 1 x 4 - 5
first you need to multiple and divide
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5

Please answer this question for me.

Answers

Answer:

37%

Step-by-step explanation:

the shape is 10 by 10, or 100 squares.

37 of the squares are shaded in.

37/100

37%

I think the answer is 37% (srry if it's wrong)

An arithmetic sequence has this recursive formula:
a1=9
an=an-1 -3
What is the explicit formula for this sequence?
A. an=9+(n-1)(-3)
B. an=-3+(n-1)9
C. an=9+(n-3)(-1)
D. an=-1+(n-9)(-3)

Answers

Answer:

The correct answer is:

Option A. a_n=9+(n-1)(-3)

Step-by-step explanation:

Given that

a1 = 9

[tex]a_n = a_{n-1}-3[/tex]

We can see that in recursive formula the next term is being obtained by subtracting 3 from previous term

That means that the common difference is -3

We also know the first term

The general form of explicit formula for an arithmetic sequence is:

[tex]a_n = a_1 + (n-1)(d)[/tex]

We know that a1 = 9 and d = -3

Putting the values we get

[tex]a_n = 9+(n-1)(-3)[/tex]

Hence the correct answer is:

Option A. a_n=9+(n-1)(-3)

14. Sean collected the data on the weight of each of 20 puppies brought into an animal hospital during the month of March. The box plot shown represents
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Answers

Answer:

The dot plot represents the individual weights of the puppy at different number of the day in March.

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Step-by-step explanation:

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Answers

Answer:

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Step-by-step explanation:

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Answers

Answer:

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Step-by-step explanation:

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Answers

1 1/2 m and 5/8 meter need to have the same denominator in order to subtract.

1 1/2 is equivalent to 12/8
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The scale of a drawing is 2cm : 1 mm. Is the scale drawing larger or smaller than the actual object? EXPLAIN in ONE sentence.

Answers

Answer:

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Step-by-step explanation:

There are 10mm in one cm, so scale drawing is larger than original by factor of 10.

Please convert these! (Scientific Notation)

Answers

Answer:

Below

Step-by-step explanation:

1.

[tex]4.2*10^{-1}[/tex]

2.

[tex]2.875*10^{3}[/tex]

3.

[tex]1.4031 *10^{6}[/tex]

4.

[tex]8.3*10^{-2}[/tex]

If you need help understanding why you move the decimal places, you can ask in the comments. :).

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Answers

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Answers

Answer:

[tex]y=2x+7[/tex]

Step-by-step explanation:

All parallel lines have the same slope, so in slope intercept form, our line is going to look like

[tex]y=2x+b[/tex]

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Answers

Answer:

I will use option A sine formula

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?????????????????????

Answers

Answer:

x = 43.5°

Step-by-step explanation:

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Answer:

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Answers

Answer:

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Step-by-step explanation:

create common denominators then you can tell by the numerator.

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Answers

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Answers

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A

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B

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C

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D

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Answers

Answer:

B

Step-by-step explanation:

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Answers

Answer:

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Step-by-step explanation:

becjv dfv igcicifcigxixixicocvicicirxc ou9 xexiixi xiexexuwuzwxit

Answer:

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Step-by-step explanation:

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Answer:

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Please help which one isnt a function pleasee

Answers

Answer:

the answer is B

Step-by-step explanation:

B is not a function it is a chart

(goin off off what i was told in middle school)

B! please give brainly it helps a lot!

How to find the probability of rolling divisors of 12?

Answers

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Step-by-step explanation:5 of those 6 numbers are divisors of 12. 1,2,3,4, and 6. 5/6 is 0.833... which is 83% of 6. So the probability of rolling divisors of 12 is 83%.

100 points! WILL GIVE BRAINLIST FOR FIRST ANSWER
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Answers

Answer:

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Step-by-step explanation:

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Step-by-step explanation:

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Answers

Answer:

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Step-by-step explanation:

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