if 5 apple price is equal to 7 orange,Then how much apple price is equal to 28 oranges?
Answers
Answer:
1
If 4 apples and 6 oranges cost Rs. 68, and 7 apples and 9 oranges cost Rs. 107, what is the cost of 1 orange?
Robert Nichols
Answered April 8, 2017
1 orange will cost 8 Rs.
Write a system of equations and use either graphing, substitution or linear combination to find the solution.
let x = the price of one apple
let y = the price of one orange
4x + 6y = 68
7x + 9y = 107 To eliminate y, multiply the 1st equation by -3 and the second by +2
-12x - 18y = -204
14x + 18y = 214 Add the two equations together
2x = 10 Divide both sides by 2
x = 5
If x = 5 then 4(5) + 6y = 68, so 20 + 6y = 68 subtract 20 from both sides
6y = 48 Divide both sides by 6
y = 8
Now check
4(5) + 6(8) = 20 + 48 = 68 check
7(5) + 9(8) = 35 + 72 = 107 check
1 apple will cost 5 Rs.
1 orange will cost 8Rs.
Answer:
20 is your answer it will help you