MATHEMATICS MIDDLE SCHOOL

2x - 5y=-15
can someone walk me through this?

Answers

Answer 1
Answer: The equation given in the question has two unknown variables in the form of "x" and "y". The exact value of "x" and "y" cannot be determined as two equations are needed to get to the exact values of "x" and "y". This equation can definitely be used to show the way for determining the values of "x" in terms of "y"and the value of "y" in terms of "x". Now let us check the equation given.
2x - 5y = - 15
2x = 5y - 15
2x = 5(y - 3)
x = [5(y - 3)]/2
Similarly the way the value of y can be determined in terms of "x" can also be shown.
2x - 5y = - 15
-5y = - 2x - 15
-5y = -(2x + 15)
5y = 2x + 15
y = (2x +15)/5
   = (2x/5) + (15/5)
   = (2x/5) + 3
So the final value of x is [5(y -3)]/2 and the value of y is (2x/5) + 3.

Related Questions

Which pairs of angles are alternate exterior angles?Choose exactly two answers that are correct.
Which describes the relationship between 20,000 and 200,000?
What are two square roots of 196
If you multiply me by 7 add 1 and then divide by 4 you get 9 what number am I?
Using pair and line graphs describe the difference between locating a point at 2,4 and 4,2

Who can help me with #39 please:))))

Answers

The answer to the problem is D

35  : 15 is the same as 7 : 3

Sophia's vegetable garden is is divided into 12 equal sections. She plans carrots in 8 of the sections. Write two factions that are equivalent to the part of Sophia's garden that is planted with carrots.

Answers

well the answer un simplified is 8/12 but simplified by 2 is 4/6 and simplified again by 2 would be 2/3 and that is as mch as it will go down so 4/6 and 2/3
8/12 and 4/12 because 8 of the garden is going to have carrots but 3 parts of the garden is not going to have something else.

What is the value of the range in this data set.

17,19,30, 199, 1

Answers

199-1=198.Therefore your answer is 198.

Hope this helps.
 your answer is 198 i hope that this helps some

Which expression is equivalent to 7(xy)?
7x+y
7x-y
X(7y)
Xy/7

Answers

Answer:X(7y)

Step-by-step explanation:

Answer:

It's C, I got a 100% on my quiz when I put C

Factor completely. 1+12x+36x^2 what is the answer

Answers

Step-by-step explanation:

Factor using the perfect square rule.

(1+6x)2

Answer:

(1+6x)^2

Step-by-step explanation:

Which one is smallest to largest
0,5,-3,-7

Answers


-7, -3, 0 and then 5 would be the order from least to greatest.
-7 , -3 , 0 , 5 is the order from least to greatest
Other Questions
1. What is the least common multiple of both 9 and 12?2. What is the greatest common factor of both 9 and 12? Need answers to both of them please label them Please!!!!!!
How can you tell that a fraction is a unit fraction? (can't any fraction be a unit fraction?)
A company makes concrete paving stones in different sizes. Each stone has a volume of 360 inches and a height of 3 inches. the stones have different lengths and widths. how many different paving stones each with different base and a volume of of 360 cubic inches?
What is 64% of 875??