Answer:
Step-by-step explanation:
x = larger number, y = smaller number
x + y = 57
x = 2y - 3
2y - 3 + y = 57
3y - 3 = 57
3y = 57 + 3
3y = 60
y = 60/3
y = 20 <=== the smaller number
x = 2y - 3
x = 2(20) - 3
x = 40 - 3
x = 37 <=== the larger number
Pyhtaorean theorem says a² + b² = c²
a² + 7² = 25²
a² + 49 = 625; subtract 49 from both sides
a² = 576; square root both sides
a = 24
The perimeter is the distance around the figure, so 7 + 24 + 25 or 56
ANSWER
x=11
EXPLANATION
We want to solve the equation:

Add -8 to both sides:

Square both sides of the equation to get:


Rewrite in the form ax² +bx+c=0


Factor to get,

This implies that,

Checking for extraneous solutions.
When x=6, the original equation becomes,


2+8= 6 is not true.
x=6 is an extraneous solution.
When x=11, the original equation becomes,



This is true, hence x=11 is the only solution.
Answer:
1.x=24
2.x=18 :)
Step-by-step explanation:
Have a great dayyyyyy