Answer:
430
Step-by-step explanation:
<u>Given :-</u>
- By selling a watch on 400 and 460’. Loss and profit happened respectively.
- The loss and profit are equal.
And we need to find out the CP .So ,
<u>Let :- </u>
- CP be x
- Profit and Lost be y .
<u>According to the Question :- </u>
460 = x + y <em>( Profit)</em>
400 = x - y <em>( Loss)</em>
<u>Adding both :- </u>
460 + 400 = x + y + x - y
860 = 2x
x = 860/2
x = 430
<u>Hence the Cost price of the watch is 430 .</u>
What are you trying to say
Answer: B
Step-by-step explanation:????
Troll
2x+5y=21, x+y=3
y=3-x
2x+5y=21
2x+5(3-x) =21
2x+15-5x=21
2x-5x+15=21
-3x+15=21
-3x=21-15
-x=6/3
-x=2
x=-2
Answer:
2x + 3y = 6
Step-by-step explanation:
obtain the equation in slope- intercept form
y = mx + c ( m is the slope and c the y-intercept )
here m = -
and c = 2
y = -
x + 2 ← in slope-intercept form
multiply all terms by 3 to eliminate the fraction
3y = - 2x + 6 ( add 2x to both sides )
2x + 3y = 6 ← in standard form