In how many 6. different ways can you place the numbers 1,2, 3,4, 5, 6,7, 8, and 9 into groups so that the sum of the numbers in each group is 15?
A restaurant menu includes orders of 6, 9, and 20 cheese sticks. To get 15 sticks, you can order 6 sticks and 9 sticks. You cannot order 16 sticks because no combinations of 6, 9, and 20 add up to 16. What is the largest number of sticks that you cannot order?
A rectangular prism made up of 1 -cm cubes has dimensions of 3 cm by 4 cm by 5 cm. If the faces of the prism are painted orange, how many cubes have orange paint on only one face?
The first time Rohana and Emma raced 20 km on bicycles, Emma was 2 km from the finish line when Rohana finished. The next day, Rohana agreed to start 2 km behind Emma, so that Rohana would ride 22 km and Emma, 20 km. If each of them rode at the same speed as she did during the first race, who won the second race?
Estimate the number of pianos in Ontario.
Chen and Sharif travelled from Acton to Beamsville on foot. Chen walked half the distance and ran half the distance. Sharif walked half the time and ran half the time. If they walked at the same speed and ran at the same speed, who arrived in less time, or was it a tie?
Tara left her hotel to sightsee in Ottawa. She walked four blocks north, three blocks east, one block south, four blocks east, six blocks north, five blocks west, two blocks south, and six blocks west. How many blocks and in which d1r'ections should Tara walk to get back to her hotel in the shortest distance?
Sarah wants to cover the floor of a kitchen with 20-cm square tiles. The floor is 3 m by 4In. How many tiles does she need?