200 yuan, later, due to the backlog of this product, the store was prepared to sell it at a discount, but it was necessary to ensure that the profit rate was not less than 5%, and at most it could be used.

Fold.

Answer 7

The distance from Xiaoming's home to school is 2.

400 meters, if Xiaoming leaves home at 7: 00 in the morning, he should arrive at school between 7: 30 and 40: 00, and set the walking speed to.

M/min, the set of countable inequalities is _ _ _ _ _ _ _ _ _ _ _, and the walking speed range of Xiaoming is _ _ _ _ _ _ _.

answer

60m/min ~ 80m/min

From A to B is 16km. If someone goes from A to B at a speed of 4km/h to 8km/h, it takes about ().

A. 1 ~ 2 hours

B.2 to 3 hours

C.3-4 hours

D.2-4 hours

Answer d