Question

the sum of 2 numbers is 25. and their difference is 7. find the number.

Answer 1

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.

Answer 2

ty

Answer 3

yw

Answer 4

x+y=25
x-y=7....on solvng..
x=16,y=9

Answer 5

ok got a new question

Answer 6

the length of a rectangle is 5 more than twice the width. the permiter is 130 in. what is the area

Answer 7

yea ask..

Answer 8

5b+b=130
bredth=21.6
length=108.4

Answer 9

area=lb=2341.4

Answer 10

sory...b=10.8
i=54.2

area=587

Answer 11

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.

Answer 12

Then multiply the length times the width to get the area, since:
\[Area = length \times width\]
Gives the area of a rectangle.

Answer 13

hey u got the sol @babystar 16

Answer 14

ty