Asked by che
three apples and 2 ponkans cost P51. two apples and 3 ponkans cost P46.50. how much will half a dozen apple and half a dozen ponkans cost?
Answers
Answered by
Steve
one way:
3a+2p = 51
2a+3p = 46.50
add them up:
5a+5p = 97.50
multiply by 6/5:
6a+6p = 97.0 * 6/5 = 117.00
note that we didn't have to know how much each item cost.
another way:
multiply 1st by 2 and 2nd by 3 to get
6a+4p = 102
6a+9p = 139.50
subtract 1st from 2nd to get
5p = 37.50
p = 7.50
a = 12.00
6a+6p = 72.00 + 45.00 = 117.00
3a+2p = 51
2a+3p = 46.50
add them up:
5a+5p = 97.50
multiply by 6/5:
6a+6p = 97.0 * 6/5 = 117.00
note that we didn't have to know how much each item cost.
another way:
multiply 1st by 2 and 2nd by 3 to get
6a+4p = 102
6a+9p = 139.50
subtract 1st from 2nd to get
5p = 37.50
p = 7.50
a = 12.00
6a+6p = 72.00 + 45.00 = 117.00
Answered by
che
thanks so much... but what if the cost of each ponkan and apples is asked? what will be the solution?
Answered by
Steve
excuse me???
look at the second solution, where I actually figure the cost of each.
look at the second solution, where I actually figure the cost of each.
Answered by
che
yeah its there...thanks a lot...
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