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alukav5142 [94]

3 years ago

15

elizabeth has 10$, $5 and $1 dollar bills worth 101$. She has five more 5$ bills than 10$ bills and four times as many 1$ bills.

How many bills of each kind does elizabeth have?

2 answers:

Mumz [18]3 years ago

6 0

Answer:

The answer is 4 10$ bills, 9 5$ bills, and 16 1$ bills

vampirchik [111]3 years ago

4 0

$120 is your answer

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alexdok [17]

Answer:

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Part 2) Is a consistent independent system

Part 3) Is a consistent dependent system

see the attached figure

Step-by-step explanation:

we know that

If a system has at least one solution, it is said to be consistent .

If a consistent system has exactly one solution, it is independent .

If a consistent system has an infinite number of solutions, it is dependent

If a system not have solution, it is said to be inconsistent

Part 1) we have

$x+5y=-2\\x+5y=4$

This system of linear equations has two parallel lines (their slopes are equal) with different y-intercept

so

The lines don't intersect

The system has no solution

therefore

Is a inconsistent system

Part 2) we have

$y=3x+4\\-2x+y=4$

we know that

If two lines have different slopes, then the lines intersect at one point and the system of equations has one solution

In this problem, the lines have different slopes (m=3 and m=2)

so

The lines intersect at one point

The system has one solution

therefore

Is a consistent independent system

Part 3) we have

$3x+y=4$ ----> equation A

$-6x-2y=-8$ ----> equation B

Multiply equation A by -2 both sides

$-2(3x+y)=-2(4)$

$-6x-2y=-8$ ----> equation C

Compare equation B and equation C

Are identical lines

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The system has infinity solutions

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4 0

3 years ago

The answer is 355 houses, but can someone tell me how please?

Ymorist [56]

So you do 20%*426 to get 85.2 then you would subtract 85.2 from 426 because they sold 20% more than last year. On top of that the answer isn't 355 it is 340.8.

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USPshnik [31]

Answer:

Both the median and mean decreased, but the mean decreased by more than the median.

Step-by-step explanation:

Khan academy.

Hope this helps!!!

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