Got Homework?
Connect with other students for help. It's a free community.
Here's the question you clicked on:
 0 viewing
babystar16
Group Title
the sum of 2 numbers is 25. and their difference is 7. find the number.
 one year ago
 one year ago
babystar16 Group Title
the sum of 2 numbers is 25. and their difference is 7. find the number.
 one year ago
 one year ago

This Question is Closed

LukeBlueFive Group TitleBest ResponseYou've already chosen the best response.2
This 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.
 one year ago

pkjha3105 Group TitleBest ResponseYou've already chosen the best response.1
x+y=25 xy=7....on solvng.. x=16,y=9
 one year ago

babystar16 Group TitleBest ResponseYou've already chosen the best response.0
ok got a new question
 one year ago

babystar16 Group TitleBest ResponseYou've already chosen the best response.0
the length of a rectangle is 5 more than twice the width. the permiter is 130 in. what is the area
 one year ago

pkjha3105 Group TitleBest ResponseYou've already chosen the best response.1
yea ask..
 one year ago

pkjha3105 Group TitleBest ResponseYou've already chosen the best response.1
5b+b=130 bredth=21.6 length=108.4
 one year ago

pkjha3105 Group TitleBest ResponseYou've already chosen the best response.1
area=lb=2341.4
 one year ago

pkjha3105 Group TitleBest ResponseYou've already chosen the best response.1
sory...b=10.8 i=54.2 area=587
 one year ago

LukeBlueFive Group TitleBest ResponseYou've already chosen the best response.2
This 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.
 one year ago

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

pkjha3105 Group TitleBest ResponseYou've already chosen the best response.1
hey u got the sol @babystar 16
 one year ago
See more questions >>>
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.