SOLUTION: Hey please help me with this question: An orange cost 8 cents more than an apple. If I buy 7 apples and 8 oranges the total cost is $4.24. Find the cost of one Apple.

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Question 1089567: Hey please help me with this question: An orange cost 8 cents more than an apple. If I buy 7 apples and 8 oranges the total cost is $4.24. Find the cost of one Apple.
Found 2 solutions by josgarithmetic, math_helper:
Answer by josgarithmetic(39620)   (Show Source): You can put this solution on YOUR website!
Prices p and p+0.08


-


p, price of Apple, 0.24 dollars each
price of Orange, 0.32 dollars each

Answer by math_helper(2461)   (Show Source): You can put this solution on YOUR website!
Let a = cost of apple, in cents
Let r = cost of orange, in cents
r = a + 8 (1)
7a + 8r = 424 (2)
Substitute "a+8" from (1) into (2):
7a + 8(a+8) = 424
15a + 64 = 424
15a = 360
a=24 —> r=24+8 = 32

Ans: Apples cost 24 cents each (and Oranges cost 32 cents each.)

Check:
32 = 24+8 (ok)
7(24) + 8(32) = 168 + 256 = 424 = $4.24 (ok)


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