英语翻译出自一道英文数学题类似投资的"The accounts pay 8%,10%,and 14%,respectiv

英语翻译
出自一道英文数学题
类似投资的
"The accounts pay 8%,10%,and 14%,respectively,..."中的"pay"是什么意思?
(原题:
A trust account manaer has $500,000 to be inversted in three different accounts.The accounts pay 8%,10%,and 14%,respectively,and the goal is to earn $49,000 with the amount invested at 8% equal to the sum of the other investments.To accomplish this,assume that x dollars are invested at 8%,y dollars are invested at 10%,and z dollars are invested at 14%.)
想知道pay的意思 顺便最好能说下它的意思是不是 这三个%是指的什么的% ...
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