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Questions (30)
At the annual Grade 8 ski trip, for every 2 students who skied, 3 snowboarded. Ninety-six students snowboarded. How many
2 answers
106 views
A group of boys bought 72blue, 144 black and 216 multi colored belts. What is the largest possible no. Of boys in the group?
1 answer
138 views
Find a possible pair of natural numbers whose sun is 77 and their g.c.d.is 7?
2 answers
386 views
3/4 of a group of tourists is twenty one people. 4/7 of the whole tourist group go to restaurant for lunch.
How many people go to
1 answer
408 views
3/5 of the animals on a form are goats and the rest are sheep. Find the number of goats if there are 32 sheep on the farm.
1 answer
544 views
Smith has $360. He spend 1/9 of his money first, then spends another 2/9 of the original amount.
How much money does Smith have
1 answer
549 views
On a salmon farm, pool A contains 310 salmon and a second pool B contains 90 salmon. The number of salmon in pool A is
2 answers
511 views
Nadia and Manar together have 140 walnuts. If Nadia gives fifteen walnuts to Manar then they will each have an equal number of
1 answer
517 views
John walks three times as far as Smith, and Wilson walks twice as far as John.Find the distance that John walks, if the three
1 answer
564 views
A group of 45 people decide to rent a bus for a trip. They divide the cost equally. When five of the people decide not to go on
1 answer
522 views
The number of boys in a class is 10 less than twice the number of girls.
Find the total number of the students in the class, if
1 answer
493 views
A barber and his apprentice earn $4900 in a week. The barber earns $200 more per day than his apprentice.
How much does the
1 answer
385 views
Amira and Malika are counting their school books. Amira has four times 7 less than the number of Malik's books.
If Amira has 29
1 answer
449 views
Mary bought a length of ribbon. She used 2/5 of it to wrap a package and 1/5 of it for a bow. If she used 60 in. of the ribbon,
1 answer
427 views
The mathematics club in a school has 53 members. 5/7 of the girls members and 3/5 of the boys members are from lower secondary.
0 answers
607 views
As part of the 'Learning Journey' program, 73 pupils travelled on two buses, one air-conditioned and one non-air-conditioned, to
0 answers
494 views
Mary has two tanks of fish. If she transfers 15 fish from the larger tank to the smaller tank then the number of fish in the
0 answers
680 views
There are 42 pupils in a class. 3/4 of the boys and 2/3 of the girls travel to school by bus. The total number of boys and girls
4 answers
3,101 views
A sum of money is shared among three brothers. The eldest receives 7/13 of it and the 13 next receives 2/3 of the remainder. If
1 answer
3,669 views
James uses 1/3 of his land for growing durians, 1/4 for bananas, 3/8 for guavas and the remaining 9 hectares for mangoes. What
12 answers
1,518 views
To make muffins, Mrs Chan mixed 3 cups of flour with every cup of milk.
(a) What is the ratio of the number of cups of flour to
1 answer
1,594 views
There are some peanuts and almonds in a packet. The proportion of peanuts is 2/3 of the total number of nuts in he packet.
(a)
1 answer
1,373 views
A carterer makes 50 l of lemonade. She keeps 10% of the lamonade for her family. She sells 65% of the remaining lenonade. How
1 answer
658 views
A school library had 1050 books last year. There are only 950 books in the library this year. What is the percentage decrease in
2 answers
825 views
There are 1500 poultry on a farm. 40% are chickens, 2/3 of the ramainder are ducks and the rest are geese. What percentage of
1 answer
582 views
In an English test, Alvin scored 28 out of 40 marks. In a Mathematics test, he scored 36 out of 60 marks.
(a) In which test did
2 answers
935 views
There are 54 paintings in the National Museum. The ratio of the number of sculptures to the number of paintings in the museum is
2 answers
1,836 views
There were 60 basketball players in the school team last year. This number of basketball players increases to 80. What is the
1 answer
868 views
A rice cooker was sold for $60 after a discount of 60%. What was the price of the rice cooker?
2 answers
1,172 views
6^2x + 1 = 1 3
1 answer
260 views
Answers (6)
25%
Good treatment
a+b=77 n1+n2=77 77/7=11 Where n1,n2are natural numbers So the pair of naturals are (7,70)(14,63)(21,56)(28,49) ...so on.
.o 9898
First simplify! 3*2 - 2x + 1 = -2x + 7 and 2*2 + 7x + 5 = 7x + 9 NOW, you have the equation (7x + 9) - (7 - 2x) because the first is subtracted FROM the second in the original question. to solve, DISTRIBUTE YOUR NEGATIVE SIGN! It will become 7x + 9 - 7 +
Your second assumption is correct, but it would be 1248 because 0.4 of a tile requires an extra tile. Basically, you found the total area and divided it by the area of one tile, which indeed did give you the number of tiles necessary to fill it up. And
