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A rectangular chalk board is

A rectangular chalk board is 3 times as long as it is wide. If it were 3 metres shorter and 3 metres wider, it would be square.
1. 3 answers
2. asked by Rezu
3. 676 views
A box of chalk weighs 11.5kg. When the box of chalk is a half full of chalk, it weighs 6.5kg. Calculate the weight of chalk only
1. 1 answer
2. 98 views
In spanish, what cleans a chalk board?el borrador
1. 0 answers
2. asked by brenda
3. 485 views
Chalk contains calcium,carbon and oxygen in the ratio 10:3:12.Find the percentage of carbon in a chalk and in a stick of chalk,
1. 2 answers
2. asked by Ashish
3. 1,048 views
A piece of chalk (CaCO3) has an initial mass of 43.5 grams. The massof the chalk decreased to 39.6 grams after it was used.
1. 1 answer
2. 88 views
How would I describe some of the physical and chemical properties of a chalk board?
1. 1 answer
2. asked by rhon
3. 411 views
a rectangular board is 2 by 12 units. How far from the short sides of the board will the foci be located to determine the
1. 0 answers
2. asked by trellis
3. 834 views
How would you find the number of 'chalk molecules' it takes to write your name on the board? Explain what you would need to
1. 1 answer
2. asked by Cliff
3. 1,817 views
A box of chalk and 2 staples cost $10. Three box of chalk and 2 staplers cost $18. Find the total cost of 1 box of chalk and 1
1. 6 answers
2. asked by Anonymous
3. 2,657 views
a box of chalk and 2 staplers costs $10. 3 boxes of chalk and 2 staplers costs $18. find total cost of 1 box of chalk and 1
1. 2 answers
2. asked by tim
3. 560 views