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ra1l [238]
3 years ago
8

The sum of x and 3 times y is 5. The difference of x and y is 5. Write two equations and graph to find the value of y.

Mathematics
1 answer:
kupik [55]3 years ago
5 0

Answer:

for the first one, x + 3 * y = 5

and the second equation, x - y = 5

Step-by-step explanation:

the sum of two numbers means for example the sum of 5 and 8 is 13, so as an equation that is 5 + 8 = 13

the difference is the same thing as the sum but it's subtraction.

and then times is just multiplication.

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What is 1/10 of 50.00
alex41 [277]
(1/10) * 50 = 5

1/10 of 50 is 5
7 0
3 years ago
Drag and drop the constant of proportionality into the box to match the table. If the table is not proportional, drag and drop "
olga_2 [115]

Answer: not proportional


Step-by-step explanation:

The constant is called the coefficient of proportionality if one variable is always the product of the other variable and a constant. And the variables are said to be directly proportional.

In the given table , let the variables are proportional then the constant of proportion(k)=\frac{y}{x}

\Rightarrow\ k=\frac{3}{2}=1.5

\Rightarrow\ k=\frac{7}{4}=1.45

⇒ k is not a constant of proportionality.

⇒ the variables x and y are not proportional.


6 0
3 years ago
Read 2 more answers
What are the solutions of 2x^4-5x^3+60x^2+180x-432
swat32
The polynomial can't be factored because they are all rational numbers.
5 0
4 years ago
I NEED HELP!!!
Oksana_A [137]

Answer:

It will be the graph of two lines intersecting at two comma three with text on graph that reads One Solution 2, 3.

Step-by-step explanation:

The system of equations are  

y - 2x = - 1 ............ (1) and  

2y - x = 4 ........... (2)

Now, solving equations (1) and (2) we get,

2(2x - 1) - x = 4

{Substituting the value of y from equation (1) to equation (2)}

⇒ 4x - 2 - x = 4

⇒ 3x = 6

⇒ x = 2  

Hence, from equation (1) we get,

y = 2x - 1 = 2(2) - 1 = 3

Therefore, the solution is (2,3).

So, it will be the graph of two lines intersecting at two comma three with text on the graph that reads One Solution 2, 3. (Answer)

7 0
4 years ago
Help!!<br><br>Will give brainliest!<br><br>Plz explain how to do this if possible.
Dima020 [189]

Answer: a=3.74

Step-by-step explanation:

first use 15 to solve for  x and z. x=7.5 and z=12.99 or 13. Once you know x you can use that to solve for y and a. y=6.5 and x=7.5 and using pythagorean theorem you will find that a= the square root of 14 or 3.74.

4 0
3 years ago
Read 2 more answers
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