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olya-2409 [2.1K]
3 years ago
15

If you had 25 red marbles and 50 green marbles. How many more green marbles would you have to add so the ratio is 1red marble to

every 6 green marbles?
Mathematics
2 answers:
Komok [63]3 years ago
7 0
The answer is 100 more green marbles
uysha [10]3 years ago
3 0

Answer:

150

Step-by-step explanation:

25:50 is the same 1:2 so if you multiply 2x3 you get so 6 same as 50x3 which is 150

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Solve the systems by the addition method 2x + y = - 1x - 2y = - 4
inna [77]

Answer:

x = -6/5

y =7/5

Step-by-step explanation:

2x + y = - 1

x - 2y = - 4

Multiply the first equation by 2 so we can eliminate y

2(2x + y = - 1)

4x + 2y = -2

Add this to the second equation

4x + 2y = -2

x - 2y = - 4

---------------------

5x + 0y = -6

Divide by 5

5x/5 = -6/5

x = -6/5

Multiply the second equation by -2 so we can eliminate x

-2(x - 2y = - 4)

-2x+4y = 8

Add this to the first equation

2x + y = - 1

-2x+4y = 8

---------------------

0x + 5y = 7

Divide by 5

5y/5 = 7/5

y =7/5

6 0
3 years ago
Carlos earns $3.50 a day on his paper route. He runs
loris [4]

Answer:

their are 4 weeks in a month so 4*7=

28

so its 1/28 which is equals to (1 divided by 28)

3.57%

Hope This Helps!!!

6 0
2 years ago
Read 2 more answers
Smoothing a time series of observations A. is a form of statistical cheating. B. allows statisticians to use less data than woul
DedPeter [7]

Answer:

D. is used to reveal an underlying pattern in the data.

Step-by-step explanation:

Smoothing a time series is achieved when a computer uses some pre-programmed calculation methods to remove noise from large volumes of data. Smoothing helps a user detect patterns in a set of data, thus making it possible to make future predictions. For example, smoothing can be used in the prediction of the rise and fall of stock prices. This helps the traders to have an idea of what to expect in the cost of trading.

Although smoothing reveals the patterns in a set of data, it provides no explanation as to why it is so. It is left to the researcher to draw conclusions as to the reasons for the patterns.

5 0
3 years ago
Can someone help me please !
NeX [460]

the anwser to this queation is D

6 0
3 years ago
Which situation can be represented by 16 x 4?
Alex787 [66]

Answer:

the answer should be c.

Step-by-step explanation:

here's why....A uses 4 more which is adding. B uses 4 fewer which is subtracting and D does not complete so it should be C.

6 0
3 years ago
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