標題:
以下的數學題應該怎樣計算?(連步驟)!please help me!
發問:
1. 8A = 60 - 2A 2. 60% x 7P = 9.8 3. ( 1+ 25% )B =32 4. 7( B + 30 % )=16.38 5. 3 ( P - 4.5 ) = 8.1
最佳解答:
1 8A+2A=60 A=60/10 A=6 2007-03-07 16:57:15 補充： 2. 60% x 7P = 9.87P=9.8/0.6P=16.3/7=2.333. ( 1 25% )B =321.25B=32B=32/1.25B=25.64. 7( B 加 30 % )=16.38B加0.3=2.34B=2.045. 3 ( P - 4.5 ) = 8.1P-4.5=8.1/3P=2.7加4.5p=7.2
其他解答:
1 . 8A=60-2A 8A+2A=60 10A=60 A=60/10 A=6 2. 60% x 7P=9.8 0.6x7P=9.8 7P=9.8/0.6 7P=16 P=2.28 3. (1+25%)B=32 (1+0.25)B=32 1.25B=32 B=32/1.25 B=25.6 4. 7(B+30%)=16.38 B+30%=16.38/7 B+0.3=2.34 B=2.34-0.3 B=2.04 5. 3(P-4.5)=8.1 P-4.5=8.1/3 P-4.5=2.7 P=2.7+4.5 P=7.2|||||1.)8A = 60 - 2A 10A=60 A=6 2.)60% x 7P = 9.8 60%= 9.8 / 7P 60%= 1.4/P 0.6=1.4/P 3/5=14/10P 3X10P=14X5 30P=70 P=7/3 - - - - - - - - - - - - [sor .....so long ........] 3.) ( 1+ 25% )B =32 1.25B=32 B=32/1.25 B=3200/125 B=25.6 4.) 7( B + 30 % )=16.38 7B+210%=16.38 7B=16.38-2.1 7B=14.28 B=2.04 5.) 3 ( P - 4.5 ) = 8.1 3P-13.5=8.1 3P=21.6 P=7.2 [HoPe I CaN HeLp U *~~ ]
以下的數學題應該怎樣計算?(連步驟)!please help me!
發問:
1. 8A = 60 - 2A 2. 60% x 7P = 9.8 3. ( 1+ 25% )B =32 4. 7( B + 30 % )=16.38 5. 3 ( P - 4.5 ) = 8.1
最佳解答:
1 8A+2A=60 A=60/10 A=6 2007-03-07 16:57:15 補充： 2. 60% x 7P = 9.87P=9.8/0.6P=16.3/7=2.333. ( 1 25% )B =321.25B=32B=32/1.25B=25.64. 7( B 加 30 % )=16.38B加0.3=2.34B=2.045. 3 ( P - 4.5 ) = 8.1P-4.5=8.1/3P=2.7加4.5p=7.2
其他解答:
1 . 8A=60-2A 8A+2A=60 10A=60 A=60/10 A=6 2. 60% x 7P=9.8 0.6x7P=9.8 7P=9.8/0.6 7P=16 P=2.28 3. (1+25%)B=32 (1+0.25)B=32 1.25B=32 B=32/1.25 B=25.6 4. 7(B+30%)=16.38 B+30%=16.38/7 B+0.3=2.34 B=2.34-0.3 B=2.04 5. 3(P-4.5)=8.1 P-4.5=8.1/3 P-4.5=2.7 P=2.7+4.5 P=7.2|||||1.)8A = 60 - 2A 10A=60 A=6 2.)60% x 7P = 9.8 60%= 9.8 / 7P 60%= 1.4/P 0.6=1.4/P 3/5=14/10P 3X10P=14X5 30P=70 P=7/3 - - - - - - - - - - - - [sor .....so long ........] 3.) ( 1+ 25% )B =32 1.25B=32 B=32/1.25 B=3200/125 B=25.6 4.) 7( B + 30 % )=16.38 7B+210%=16.38 7B=16.38-2.1 7B=14.28 B=2.04 5.) 3 ( P - 4.5 ) = 8.1 3P-13.5=8.1 3P=21.6 P=7.2 [HoPe I CaN HeLp U *~~ ]
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