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valentina_108 [34]
4 years ago
6

Solve the system of linear equations by substitution.What is the solution to x=2y+y and 3x+2y=3

Mathematics
1 answer:
gulaghasi [49]4 years ago
5 0

Answer: the first one is 3y

Step-by-step explanation:

Go to the website mathpapa , type in the problem and it gives you the answer with steps

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Jaxson and his friends went into a movie theater and they want to buy some bags of popcorn and pretzels. Each bag of popcorn cos
katovenus [111]

Answer:

$22 for popcorn and $8 for pretzels together it would be $30

Step-by-step explanation:

5 0
3 years ago
What is 4 (x+7) + 7 (x+7)
kakasveta [241]
The answer is 11x + 7
4 0
3 years ago
What is the domain of the function f (x) x-5/x^2-9
nikklg [1K]
Means the number you can use
remember we can't divide by zero
domain is x^2-9
set to zero to find values we can't use
x^2-9=0
x^2=9
x=+/-3

domain=all real numbers except -3 and 3

7 0
4 years ago
Read 2 more answers
What happens to a number when you multiply by 1000? Why does this happen?
Elis [28]

Answer:

the number will get 1000 times larger than its original number or 3 zeroes will be added in the last place of the number

Step-by-step explanation:

let's say x=5,

if we multiply 5 by 1000 it becomes 5000 (it is 1000 times more or larger than its orignal number and 3 zeroes are added in 5000).

8 0
2 years ago
2, 6, 10, 14, ...
8090 [49]

The sequence can be represented by 2 + 4x, where x is a whole number(x \geq 0 and x is an integer). By this, we should be able to plug in some whole number x and be able to get these values if they are in the sequence. To test this, let's set these numbers equal to 2 + 4x and confirm that there is a whole number x which equals the values selected.


2 + 4x = 90 \Rightarrow 4x = 88 \Rightarrow x = 22 \, \checkmark

2 + 4x = 150 \Rightarrow 4x = 148 \Rightarrow x = 37 \, \checkmark

2 + 4x = 160 \Rightarrow 4x = 158 \Rightarrow x = 39.5


When trying 160 with our equation, we find that x doesn't equal a whole number, thus our answer is C, or 160. To confirm our answer, we can test 170 and 210 and confirm that they both give us a value for x which is a whole number.


2 + 4x = 170 \Rightarrow 4x = 168 \Rightarrow x = 42 \, \checkmark

2 + 4x = 210 \Rightarrow 4x = 208 \Rightarrow x = 52 \, \checkmark

6 0
3 years ago
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