西红柿的单价一定,购买西红柿的数量和总价成反比例. .(判断对错)
21÷ ==28: =( )%=0.875.
25%=3÷ = :16= :24.
:24== %= (小数)
1.25==15: = %.
3÷ =6: ==0.75= %