Sign In
Ask Question
Mathematics
Ramon
28 October, 13:30
If x-y=10 and x squared-y squared = 40 then y=?
+4
Answers (
2
)
Charlie Hampton
28 October, 14:20
0
12 I know I gave you the wrong answer
Comment
Complaint
Link
Jeffery Joyce
28 October, 17:07
0
Solve for y in the first equation
-y=-x+10
y=x-10
Now substitute y in the second equation
x^2 - (x-10) ^2=40
x^2 - (x^2-20x+100) = 40
20x-100=40
20x=140
x=7
Plug the value of 7 in to any of the equations
7-y=10
y = (-3)
Final answer: y = - 3
Comment
Complaint
Link
Know the Answer?
Answer
Not Sure About the Answer?
Get an answer to your question ✅
“If x-y=10 and x squared-y squared = 40 then y=? ...”
in 📙 Mathematics if there is no answer or all answers are wrong, use a search bar and try to find the answer among similar questions.
Search for Other Answers
You Might be Interested in
7k-2 (3k+1) - 9 simplifyed
Answers (1)
Which has the best unit rate 16 oz for $3.30 or 64 oz for $8.60
Answers (2)
2. At the mall, Leona bought a T-shirt and a book for a total of $23. The book cost $12. How much did the T-shirt cost? (a) What is the unknown information? (b) Let x represent the unknown information.
Answers (2)
The number is less than 20. it is an odd one-digit number. it is not the number of sides of a triangle. It can be divided by three. What is the number?
Answers (2)
Mr and mrs gracia took their three children to see a matinee on saturday. they spent a total of 55.50, which included 29.95 at the concession stand. if the tickets cost the same for everybody, how much did each ticket cost?
Answers (1)
New Questions in Mathematics
Eight cakes cost £4.00. How much do three cakes cost?
Answers (1)
What number is 32.5% of 38.4
Answers (1)
Use the Remainder Theorem to determine which of the following is a factor of p (x) = x 3 - 2x 2 - 5x 6.
Answers (1)
If I put 4736 marbles into groups of 100 how many groups would I have
Answers (2)
What is the product? (6) (negative 12)
Answers (1)
Home
»
Mathematics
» If x-y=10 and x squared-y squared = 40 then y=?
Sign In
Sign Up
Forgot Password?