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Anyone can solve this for me....I can't do it please help
6 stools and 3 chairs, bought at $58, 3 stools and 2 chairs bought at $35...What is price of stools and chairs?
By Using same this method with putting given above values, u can solve ur question.
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Ques: 6 stools and 4 chairs cost $58 while 5 stools and 2 chairs cost $35. Find the costs of one stool and one chair each.
Answer:
We can rewrite the problem like this:
6 stools + 4 chairs = 58
5 stools + 2 chairs = 35
We need to make a representation for the stools and the chairs. We can make it this way:
Let x be the cost of one stool
Let y be the cost of one chair
Having that, we can now substitute stools with x and chairs with y. So:
6x + 4y = 58
5x + 2y = 35
As you can see, we can multiply -2 to both sides of the equation, 5x + 2y = 35, to eliminate 4y and -4y. It would be:
-10x – 4y = -70
Now, we can eliminate 4y from the first equation and -4y from the second equation. That would leave us with variables x in both equations. Combining both, we will get:
6x – 10x = 58 – 70
-4x = -12
x = 3
Now we can substitute x with 3 in the first equation. It will look like this:
6(3) + 4y = 58
18 + 4y = 58
4y = 40
y = 10
Now that we have both x and y, we can now say that:
The cost of one stool is $3 while the cost of one chair is $10.
A.o>A
sis please explain this line.
"
As you can see, we can multiply -2 to both sides of the equation, 5x + 2y = 35, to eliminate 4y and -4y. It would be:
-10x – 4y = -70
Now, we can eliminate 4y from the first equation and -4y from the second equation. That would leave us with variables x in both equations. Combining both, we will get:
6x – 10x = 58 – 70
-4x = -12
x = 3
-2 aur 2 khan sy liy ap ny ?? multipy krein gy -2 sy means ?? plz explain this point meny lec bhi suna smjh nhi ai"
Jazzak Allah u too dear.
Anyone can solve this.....
The monthly incomes of A and B are in the ratio 4 : 5, their expenses are in the ratio 5 : 6. If 'A' saves Rs.25 per month and 'B' saves Rs.50 per month, what are their respective incomes?
Answer:
Let A's income be = 4x
A's expenses, therefore=4x–25
Let B's income be =5x
B's expenses, therefore =5x–50
We know that the ratio of their expenses =5:6
⇒ 24x−150=25x−250
⇒ Therefore, x=100.
⇒ A's income =4x= 400 and B's income =5x= 500.
Let see in detail,
Solution:
Let A's
income = 4x
A's expenses =4x–25
Let B's
income =5x
B's expenses =5x–50
4x-25:5 = 5x-50:6
4x-25/5 = 5x-50/6 (will be cross multiplication here)
6(5x-50) = 5(4x-25)
24x - 150 = 25x - 250
24x + 25x = - 250 + 150
- x = - 100
x = 100
therefore,
A's income = 4x = 4(100) =400
B's income = 5x = 5(100) =500
Hope,it 'll be understood now. :)
Wish u Good Luck!
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