MATH F.1 20點

2008-10-27 2:15 am
for two consecutive even numbers,3 times the larger number is 22 more than 2 times the smaller number .find the two number .
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回答 (4)

2008-10-27 2:22 am
✔ 最佳答案
Let the two number are x and x+2.
3(x+2)=2x+22
3x+6=2x+22
x=16
∴The two number are 16 and 18.
2008-10-27 2:51 am
for two consecutive even numbers,3 times the larger number is 22 more than 2 times the smaller number .find the two number .
兩個連續偶數,較大的數字3倍大於較小的數字的2倍22。 找到那兩數字.

設二數是x和x+2.

3(x+2)-2x=22

3x+6-2x=22

x+6-6=22-6

x=16
參考: ME
2008-10-27 2:34 am
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2008-10-27 2:23 am
x = smaller number = 16,
y = larger number = 18
3x - 2y = 22
3(18) - 2(16) = 22



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