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Arte-miy333 [17]
3 years ago
7

Please help me (explain how to do it and give the answer).

Mathematics
1 answer:
shutvik [7]3 years ago
7 0

Answer:

The given system of equations is ''consistent and independent''.

Step-by-step explanation:

Given the system of equations

2x-y=-3    ---- Equation A

4x-2y=-6  ---- Equation B

Please observe that each line of the system of equations can be written in two different forms

For example,

2x-y=-3    ---- Equation A

multiply Equation A by the number 2

2(2x-y) = -3×2

4x-2y = -6  ---- Equation B

So, when we multiplied Equation A by 2, we got the Equation B

We know that when the same line can be written in two different forms, then the system will be termed as the dependent system of equations and there would be infinite solutions.

In other words, it would contain the same line.

From the attached diagram, it is clear that 2x-y=-3 and 4x-2y=-6 represent the same line.

Thus,

The given system of equations is ''consistent and independent''.

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telo118 [61]

The distance depends on the time.

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To find the constant(k) we must find y/x

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3 0
4 years ago
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Mrs. Bendit’s 1st Block class has 28 students. There are 7 girls in the class. What percent of boys are in the class?
Gemiola [76]

Answer:

Boys: 75%

Girls: 25%

Step-by-step explanation:

Total: 28 Students: 100%

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28(total)-7 (girls)= 21 Boys in class

__________________

If we divide the amount  boys OR girls ( depending on which gender) after the toal and move the decimal to the right twice after dividing) we will get our answer.

Formula:

(Amount of Boy or girls) = x

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So since we are trying to get the percentages of boys, we will replace X with the amount of boys

21/28 = .75 ( then move the decimal to the right TWICE) =  75  

Then you should get your percentages: 75%  Also if your lookings for girls percentages, you basically subtract 75 ( boys percentages) with the total percentages ( 100) then you should get your answer for the girls: 25%

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3 years ago
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sashaice [31]
D=426-48(21)
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3 years ago
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I need help show me the work and I have to use tree diagram
amm1812
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3 years ago
neveah and jason stopped by a restaurant to eat neveah purchased 2 hotdogs and 1 drink for $3.75 jason purchased 3 hotdogs and 2
RoseWind [281]

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