A community for students.
Here's the question you clicked on:
 0 viewing
babystar16
 3 years ago
the sum of 2 numbers is 25. and their difference is 7. find the number.
babystar16
 3 years ago
the sum of 2 numbers is 25. and their difference is 7. find the number.

This Question is Closed

LukeBlueFive
 3 years ago
Best ResponseYou've already chosen the best response.2This is equivalent to the following series of equations: \[x + y = 25\] \[x = y  7\] So, substitute the second equation into the first: \[(y  7) + y = 25\] Simplify, and you'll have y. Then, plug that value of y into the second equation to get x.

anonymous
 3 years ago
Best ResponseYou've already chosen the best response.0x+y=25 xy=7....on solvng.. x=16,y=9

babystar16
 3 years ago
Best ResponseYou've already chosen the best response.0ok got a new question

babystar16
 3 years ago
Best ResponseYou've already chosen the best response.0the length of a rectangle is 5 more than twice the width. the permiter is 130 in. what is the area

anonymous
 3 years ago
Best ResponseYou've already chosen the best response.05b+b=130 bredth=21.6 length=108.4

anonymous
 3 years ago
Best ResponseYou've already chosen the best response.0sory...b=10.8 i=54.2 area=587

LukeBlueFive
 3 years ago
Best ResponseYou've already chosen the best response.2This equation gives the perimeter of a rectangle: \[2 \times length + 2 \times width\] In this case, the following is true as well: \[length = 2 \times width + 5\] Substitute this into the first equation and solve like the previous problem.

LukeBlueFive
 3 years ago
Best ResponseYou've already chosen the best response.2Then multiply the length times the width to get the area, since: \[Area = length \times width\] Gives the area of a rectangle.

anonymous
 3 years ago
Best ResponseYou've already chosen the best response.0hey u got the sol @babystar 16
Ask your own question
Sign UpFind more explanations on OpenStudy
Your question is ready. Sign up for free to start getting answers.
spraguer
(Moderator)
5
→ View Detailed Profile
is replying to Can someone tell me what button the professor is hitting...
23
 Teamwork 19 Teammate
 Problem Solving 19 Hero
 Engagement 19 Mad Hatter
 You have blocked this person.
 ✔ You're a fan Checking fan status...
Thanks for being so helpful in mathematics. If you are getting quality help, make sure you spread the word about OpenStudy.