Peter has 2x five-dollar coins and x two-dollar coins.
By adding one condition,find a possible value of x.
(a) If the total amount of money is $ __________, then x = ____________.
(b) If the number of coins is ___________ , then x = _____________.
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2007-08-08 5:51 am
回答 (3)
2007-08-08 5:56 am
✔ 最佳答案
These are just open-ended questions(a)
If the total amount of money is $ Y ,
then x =Y / 12 .
2x *5 + x * 2 = Y
12x = Y
x = Y / 12
(b)
If the number of coins is A ,
then x = A / 3.
2x + x = A
3x = A
x = A / 3
2007-08-08 9:47 pm
(a)
If the total amount of money is $ Y ,
then x =Y / 12 .
2x *5 + x * 2 = Y
12x = Y
x = Y / 12
(b)
If the number of coins is A ,
then x = A / 3.
2x + x = A
3x = A
x = A / 3
hope can help you
If the total amount of money is $ Y ,
then x =Y / 12 .
2x *5 + x * 2 = Y
12x = Y
x = Y / 12
(b)
If the number of coins is A ,
then x = A / 3.
2x + x = A
3x = A
x = A / 3
hope can help you
2007-08-08 6:00 am
There are infinitely many solutions for parts a) and b).
a) The total amount of money = 2x * 5 + x * 2 = 12x
So, one example is: if the total amount of money is $12, then x = 1
b) The number of coins = 2x + x = 3x
So, one example is: if the number of coins is 3, then x = 1
a) The total amount of money = 2x * 5 + x * 2 = 12x
So, one example is: if the total amount of money is $12, then x = 1
b) The number of coins = 2x + x = 3x
So, one example is: if the number of coins is 3, then x = 1
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