一本书有142页,小亚看了4天,还剩36页没看.她平均每天看多页?
(142-36)÷4,
=106÷4,
=26.5(页);
答:她平均每天看26.5页.
They had a wonderful time. They ate and ate until no food on the table.
A.reminded
B.needed
C.remembered
D.remained
a、b、c、m都是有理数,且a+2b+3c=m,a+b+2c=m,那么b与c的关系是[ ]
A.互为相反数
B.互为倒数
C.相等
D.无法确定