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A girl wants to count the steps of a moving escalator which is going up. If she is going up on it, she counts 60 steps. If she is walking down, taking the same time per step, then she counts 90 steps.
answered
May 23, 2018
Mathematics
middle-school
2
votes
128k
views
To build a large sandcastle, Sam takes an old traffic cone and fills it with sand. The cone is 18 in. tall and has a diameter of 7 in. To the nearest cubic inch, how much sand does Sam use? 26 in3 103
answered
Apr 23, 2018
Mathematics
middle-school
1
vote
136k
views
The decline in economic production in Europe during the 1300s was caused by
answered
Feb 17, 2018
History
college
7
votes
9.8k
views
in a strawberry and banana smoothie the number of r bananas is one sixth the number of strawberries minus one. smoothie contains 2 bananas and s strawberries. How many strawberries are in Emma's smoothie
answered
Nov 10, 2017
Mathematics
middle-school
4
votes
191k
views
What does Delettente mean
answered
Mar 11, 2017
Computers and Technology
middle-school
5
votes
16.2k
views
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