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
GuDViN [60]
4 years ago
15

One positive integer is 5 less than twice another. The sum of their squares is 725. Find the integers.

Mathematics
1 answer:
finlep [7]4 years ago
4 0
Let the numbers are a and b; a - 5 = 2b, and -------------- (1)a2 + b2 = 250 ----------------(2) rewriting and squaring of (1) is given as; a2 = 4b2 + 20b + 25 -------- (3) substituting (3) into (2) (4b2 + 20b + 25) + b2 = 250, thus 5b2 + 20b - 225 = 0 by dividing both sides by 5 b2 + 4b - 45 = 0 solving the quadratic for b, we will get b = -9 or 5, substituting these for b in (1), we will get a asa = -13 or 15 However, if a and b must be positive integer, then a = 15 and b = 5 is the answer
You might be interested in
1 . What is the distance between the two points. (0,5 1,3), (-0,4, -1,3) ?
Studentka2010 [4]

Answer:

Step-by-step explanation:

x1 = 0.5 x2 = -0.4 y1 = 1.3 y2 = -1.3

\sqrt{(x2 - x1)^{2}+(y2 - y1)^{2}

\sqrt{(-0.4 - 0.5)^{2}+(-1.3 - 1.3)^{2}

=2.75

6 0
3 years ago
What is the value of 4 (3) - 17​
yawa3891 [41]

Answer:

4 times 3 is 12 and 12-17 is -5.

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
The volume of a packaging box is 5 - x cubic feet.The width of the box is x feet and the length is x - 2 feet. The height is giv
netineya [11]
A rational expression is undefined when the denominator is zero.
V=\dfrac{5-x}{x(x-2)}
is undefined when x=0 or x=2.
4 0
4 years ago
Read 2 more answers
Need help , if you can answer it pls do . thank you
lara [203]

Answer:

9

Step-by-step explanation:

14-5=9

therefore TV=9

hope this helped

3 0
3 years ago
Which inequality is represented by the graph?<br><br><br> A. y −3/2x−2<br><br> D. y≤−3/2x−2
Oksi-84 [34.3K]

Answer:

D.)

Step-by-step explanation:

6 0
3 years ago
Other questions:
  • Gabriel saves 40% of his monthly paycheck for college.He earned $270 last month.How much money did Gabriel save for college?
    14·1 answer
  • The table represents a function what is f(-2)
    12·2 answers
  • Find the area of the parallelogram.
    13·2 answers
  • M is the midpoint of AB. Find the coordinates of B given A(3,8) and M(5,4).
    10·1 answer
  • Difference is 4 quotient is 2
    15·2 answers
  • What’s the answer???
    13·1 answer
  • Find the surface area of the prism. 5.7 4 3 4
    9·1 answer
  • A function has a discriminant of 25.<br> How many x-intercepts does it have?
    6·1 answer
  • Hello i need urgent help with this assignment.
    9·2 answers
  • What would be the most logical first step for solving this quadratic equation?
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!