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Mandarinka [93]
3 years ago
11

Y=2x and x+3y=-14 substitution to solve each system of equations

Mathematics
1 answer:
Sergeeva-Olga [200]3 years ago
7 0
You can use the substitution method.
You substitute the first equation to the second equation to get the value of x.
x + 3y = -14
x + 3(2x) = -14
x + 6x = -14
7x = -14
x = -14/7 = -2

Substitute the value of x to the first equation.
y = 2(-2) = 4
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Solve using the system using elimination for x - y= -5 and 3x + y= 1
IceJOKER [234]
X = y - 5 

x = 1 - y / 3

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7 0
3 years ago
Read 2 more answers
Results from a survey conducted in a certain grocery store showed that 3 out of 5 people preferred crispy-flakes cereal to crunc
BabaBlast [244]

The number of people who how many most likely purchased crunchy-flakes cereal is 1000 customers.

<h3>How many most likely purchased crunchy-flakes cereal?</h3>

Ratio expresses the relationship between two or more numbers. It shows the number of times that one value is contained within other value(s).

The first step is to determine the ratio of people who preferred crunchy-flakes cereal:

Ratio of people who preferred crunchy-flakes cereal : 5 - 3 = 2

Now, multiply the ratio of those who prefer crunchy-flakes cereal by the total number of customers: (2/5) x 2500 = 1000  customers.

To learn more about ratios, please check: brainly.com/question/25927869

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5 0
2 years ago
How many g in 45 kg?
tigry1 [53]
45000 grams
Hope this helps. Have a amazing day and stay safe <3
5 0
3 years ago
7(1 - y) = -3(y - 2)
LenaWriter [7]

Answer:

1/4

Step-by-step explanation:

Distribute.

7 - 7y = -3y + 6

Get all ys on one side

7 = 4y + 6

Get constants all on one side.

1 = 4y

Divide

1/4 = y

5 0
4 years ago
Cindy has a jar of mixed nuts. There are two pecans, three peanuts, and one cashew in the jar. Cindy grabs two nuts and gives th
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The answer would have to be D 1/4
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