標題:
maths
發問:
Eric earns $16 000 per month. He spends 35% of his salary on rent, 45% on other expenses, and saves the rest. a)How much does he save each month? b)If his salary and rent remains unchanged, and he wants to spend $800 more on other expenses, find the percentage decrease inhis savings.
最佳解答:
A) $16000(1-35%-45%) =$3200 B)ORIGINAL EXPENSES=$16000*45% =$7200 NEW EXPENSES=$7200+$800 =$8000 RENT=$16000*35%=$5600 NEW SAVINGS=16000-5600-8000=$2400 % DECREASE= (3200-2400)/3200 *100% =800/3200 *100% =25%
其他解答:
a) 16000-(16000*35%+16000*45%) = $3200 b) new monthly saving =3200-800 = $2400 % decrease in his saving = ( 3200/16000 - 2400/16000) * 100% = 5%|||||a) $ 16 000*(1-35%-45%) =$ 16 000*20% =$3 200 b) ($ 3 200-$ 800)-$ 3 200/$ 3 200←分數 *100% = - 25%|||||a)$3200 b)25%|||||用中文吧!我唔知你喺到講咩?我都知你識中文! 2006-11-09 21:09:35 補充： 妳又唔用補充翻譯中文!!!搞到我話唔到比妳知!!超級負面!!!!
maths
發問:
Eric earns $16 000 per month. He spends 35% of his salary on rent, 45% on other expenses, and saves the rest. a)How much does he save each month? b)If his salary and rent remains unchanged, and he wants to spend $800 more on other expenses, find the percentage decrease inhis savings.
最佳解答:
A) $16000(1-35%-45%) =$3200 B)ORIGINAL EXPENSES=$16000*45% =$7200 NEW EXPENSES=$7200+$800 =$8000 RENT=$16000*35%=$5600 NEW SAVINGS=16000-5600-8000=$2400 % DECREASE= (3200-2400)/3200 *100% =800/3200 *100% =25%
其他解答:
a) 16000-(16000*35%+16000*45%) = $3200 b) new monthly saving =3200-800 = $2400 % decrease in his saving = ( 3200/16000 - 2400/16000) * 100% = 5%|||||a) $ 16 000*(1-35%-45%) =$ 16 000*20% =$3 200 b) ($ 3 200-$ 800)-$ 3 200/$ 3 200←分數 *100% = - 25%|||||a)$3200 b)25%|||||用中文吧!我唔知你喺到講咩?我都知你識中文! 2006-11-09 21:09:35 補充： 妳又唔用補充翻譯中文!!!搞到我話唔到比妳知!!超級負面!!!!
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