英语数学题求解~~if x percent of 500 is y,what is y percent of 10x?A.50xB.(x^2)/2C.2/5xD.5(X^2)E.(x^2)/5英语不会求翻译~~附带求详解~~
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![英语数学题求解~~if x percent of 500 is y,what is y percent of 10x?A.50xB.(x^2)/2C.2/5xD.5(X^2)E.(x^2)/5英语不会求翻译~~附带求详解~~](/uploads/image/z/882193-49-3.jpg?t=%E8%8B%B1%E8%AF%AD%E6%95%B0%E5%AD%A6%E9%A2%98%E6%B1%82%E8%A7%A3%7E%7Eif+x+percent+of+500+is+y%2Cwhat+is+y+percent+of+10x%3FA.50xB.%EF%BC%88x%5E2%EF%BC%89%2F2C.2%2F5xD.5%28X%5E2%29E.%28x%5E2%29%2F5%E8%8B%B1%E8%AF%AD%E4%B8%8D%E4%BC%9A%E6%B1%82%E7%BF%BB%E8%AF%91%7E%7E%E9%99%84%E5%B8%A6%E6%B1%82%E8%AF%A6%E8%A7%A3%7E%7E)
英语数学题求解~~if x percent of 500 is y,what is y percent of 10x?A.50xB.(x^2)/2C.2/5xD.5(X^2)E.(x^2)/5英语不会求翻译~~附带求详解~~
英语数学题求解~~
if x percent of 500 is y,what is y percent of 10x?
A.50x
B.(x^2)/2
C.2/5x
D.5(X^2)
E.(x^2)/5
英语不会求翻译~~附带求详解~~
英语数学题求解~~if x percent of 500 is y,what is y percent of 10x?A.50xB.(x^2)/2C.2/5xD.5(X^2)E.(x^2)/5英语不会求翻译~~附带求详解~~
if x percent of 500 is y,what is y percent of 10x?
如果500的x%是y,那么10x的y%是多少?
x percent of z is y,这个短语举例来说,10 percent of the population is 1530 人口的10%是1530
由题得
①500 * x% = y
②10x * y% = ?
由①得 y = 500 * x /100 = 5x
带入② 10x * 5x /100 = 50x^2 /100 =(x^2) /2
∴选B
A.50xB.(x^2)/2C.2/5xD.5(X^2)E.(x^2)/5
原题翻译:如果 500的x%是y,那么10x的y%是多少?由题意得:500*x%=y解之y=5x10x*y%=10x*5x/100=(x^2)/2答案为B
如果 500的x%是y,那么10x的y%是多少?
由条件可得500*x%=y
即500*x/100=y
5x=y
那么10x*y%=10x*5x/100=1/2(x^2)
选择B
望采纳~~