1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
rodikova [14]
3 years ago
14

Solve the following system of equations. Enter the y-coordinate of the solution. Round your answer to the nearest tenth 5x+2y=7

-2x+6y=9 is it (0.7,1.7)??
Mathematics
1 answer:
Semmy [17]3 years ago
7 0
5x + 2y = 7 ...multiply by -3
-2x + 6y = 9
-----------------
-15x - 6y = -21 (result of multiplying by -3)
-2x + 6y = 9
-----------------add
-17x = - 12
x = 12/17 or 0.7

5x + 2y = 7
5(12/17) + 2y = 7
60/17 + 2y = 7
2y = 7 - 60/17
2y = 119/17 - 60/17
2y = 59/17
y = (59/17) / 2
y = 59/17 * 1/2
y = 59/34 or 1.7

(0.7,1.7) is the solution to the equation....the question is asking for the y coordinate....it is 1.7 <==
You might be interested in
The numbers 4, 8, 12, and 22 are all multiples of 4.<br>t or f
Romashka-Z-Leto [24]
The answer is false 22 isn’t a multiple of 4
6 0
3 years ago
A square has an Area of 225
natta225 [31]
<h2>Answer:</h2>

25

<h2>Explanation:</h2>

25 because that's the only number that can evenly go into 225

6 0
2 years ago
The model represents an equation. What value of x makes the equation true?
Anuta_ua [19.1K]

Answer:

I think i wanna say one of the fractions

Step-by-step explanation:

5 0
2 years ago
What is the formula of 2AB=2AB
MAVERICK [17]

The only other possible meaning I can see is that a2 + b2 means a^2 + b^2. In the case that is a formula that cannot be simplified further, although it could be written as (a + b)^2 - 2ab or (a - b)^2 + 2ab. ... Originally Answered: What is the formula of a2+b2?

6 0
2 years ago
A video store is selling previously owned DVD'S for 40% off the regular price of $15. What is the sale price of the DVD's?
belka [17]

Answer:$9

Step-by-step explanation:

5 0
2 years ago
Other questions:
  • My teacher gave me the brain teaser and ive been trying to figure it out can someone help she wants me to find 2 answers for it.
    15·1 answer
  • Please helpppppppppp :(!!!!!!!!!!!!!!!!!
    7·1 answer
  • What is the slope of a line that passes through the origin and point (-3 -2) a. 2/3 b. -2/3 c. 3/2 or d. -3/2
    7·2 answers
  • What is 3/4 to the power of 4 as a fraction?
    14·2 answers
  • What is the cube of 0.5
    5·1 answer
  • How do you simplify 4³​
    8·1 answer
  • PLEASE HELP ME
    13·2 answers
  • 630 miles on 35 gallons of gas. How far can it drive on 12 gallons?
    9·1 answer
  • Find the missing side of the right<br> triangle and simplify your answer.<br> X<br> 8<br> 16
    9·1 answer
  • A rectangular bird sanctuary is being created with one side along a straight riverbank. The remaining three sides are to be encl
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!