The three rectancles shown besides have the same area. What is the value of x +y?
Attachments:
Answers
Answered by
0
Answer:
can they be equal is the answer of this question
Answered by
0
Answer:
x+y = 10
Step-by-step explanation:
(x+ 4) (y-3) = xy
xy-3x +4y -12 = xy
xy-xy+4y -3x = 12
4y - 3x = 12 (1)
(x+8)(y-4) = xy
xy-4x +8y -32 = xy
xy-xy -4x +8y = 32
4(-x +2y) = 32
2y-x = 8
x= 2y-8 (2)
putting x= 2y-8 in equation (1 ) we get
4y - 3(2y-8) = 12
4y - 6y +24 = 12
-2y =12-24
-2y = -12
y = -12/-2
y= 6
by putting y = 6 in equation (2) we get
x= (2×6) -8
x= 12-8
x= 4
so x+y = 6+4 = 10
hope, this will help you
plz comment
Similar questions
Math,
10 days ago
Math,
10 days ago
Social Sciences,
10 days ago
Math,
20 days ago
Hindi,
20 days ago
Computer Science,
9 months ago
Math,
9 months ago