10 oranges + 11 apples = $ 10.05
1 orange + 1 apple = $ 0.94
Therefore
10 oranges + 10 apples = $ 9.40
( 0.94 x 10 pairs = 9.40)
Since there is only 1 apple that is not accounted for...
$ 10.05 - 9.40 = $0.65 ===> the cost of one apple
0.94 - .65 = $0.29 ==> cost of one orange
To check:
10(.29) + 11(.65) = 10.05
2.90 + 7.15 = 10.05
10.05 = 10.05
2007-05-12 20:54:27
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answer #1
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answered by detektibgapo 5
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since 1 apple and one orange cost 94 cents, we know that 10 apples and ten oranges cost $9.40 (multiply .94 by 10) if we subtract 10 apples and 10 oranges from the original equation we know that 1 apple costs 65 cents ($10.05-$9.40) which in turn means an orange costs 29 cents, if you wanted to know.
2007-05-12 20:58:52
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answer #2
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answered by Anonymous
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A: 1 apple costs $0.65
Here's How:
Let o be the price for an orange.
Let a be the price of an apple
Equation 1: 10o + 11a = $10.05
Equation 2: o + a = $0.94
Multiply Eq2 with -10 all the way through so it looks like...
Equation 2: -10o - 10a = $(9.40)
Combine the equations together...
Eq1 + Eq2 => 10o - 10o + 11a - 10a = $10.05 - $9.40
Eq1 + Eq2 => a = $0.65
Done!
:)
Hope this helps!
Take Care.
2007-05-12 20:44:27
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answer #3
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answered by synapticeclipse 2
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Since the question asks for the cost of one apple, let that be a.
The cost of 1 orange is .94 - a.
Now,
11a + 10(.94 - a) = 10.05
a + 9.40 = 10.05
a = .65
Also, 1 orange costs .29, 11 apples cost 7.15, and 10 oranges cost 2.90.
2007-05-12 20:43:40
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answer #4
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answered by ? 6
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10 oranges and 11 apples cost $10.05
10 oranges and 10 apples cost . $9.40
Subtracting,
10 apple costs $0.65
2007-05-12 20:51:44
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answer #5
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answered by Helmut 7
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These are not sums. These are concept questions. If you cannot at this time come up with the answers, please re-read your chapter. Check out what a least common multiplier is. .I think you also should check out a definition of a real root. The answer is evident if you know what that is. #4 is a question about numbers. Think about it in terms of some real numbers like the ones listed in #5. Plus I do hope the question means evenly divisible. No matter what the two digit number is, what number can you always divide into another number? #5. Check out the numbers provided.
2016-05-17 05:30:38
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answer #6
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answered by Anonymous
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let that one Apple as stated 0.94 and represent apple (z)
1------------------------0.94
z-------------------10.05
cross muiltiplication X
0.94 x z---------1 x10.05
0.94z==10.05
z---------=10.05/0.94
z =10.691 same as 10.69 or 10.7
z can be 10.69 or 10.7 .
10.7 the amount you can subtrate it from the total cost of the orange and apple which is 10.05
10.7 - 10.05 = 0.65
one apple then cost 0.65
if you use the other number 10.69
10.69 - 10.05 =0.64
2007-05-12 21:51:39
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answer #7
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answered by R.I.A 30 1
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