# Posts by saba

Total # Posts: 28

**Math**

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, what was the length of the ribbon she bought?

*January 29, 2017*

**Math**

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. The total number of lower secondary members is 35. How many members of the club are boys?

*September 3, 2016*

**Math**

As part of the 'Learning Journey' program, 73 pupils travelled on two buses, one air-conditioned and one non-air-conditioned, to the Singapore Discovery Centre. Three-fifths of the pupils on the air-conditioned has wee girls. There were 17 boys in the non-at, ...

*September 3, 2016*

**Math**

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 smaller tank will be 5/7 of the number of fish in the large, tank. Given that there are 35 fish in the smaller tank originally, find the number of fish ...

*September 3, 2016*

**Math**

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 who travel to school by bus is 30. (a) How many boys are there in the class? (b) How many girls travel to school by bus?

*September 3, 2016*

**Math**

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 the youngest brother receives $6, find the sum of money shared.

*September 3, 2016*

**Math**

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 is the total area of his land?

*September 3, 2016*

**math**

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 the total number of cups of flour and milk? (b) What proportion of the mixtures is milk? (c) If Mrs Chan used a total of 20 cups of flour and milk, ...

*April 10, 2016*

**math**

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) What proportion of nuts in the packet are almonds? (b) What is the ratio of the number of almonds in the packet to the total number of nuts in the ...

*April 10, 2016*

**math**

A carterer makes 50 l of lemonade. She keeps 10% of the lamonade for her family. She sells 65% of the remaining lenonade. How many liters of lemonade does the carterer have left?

*April 10, 2016*

**math**

A school library had 1050 books last year. There are only 950 books in the library this year. What is the percentage decrease in the number of books? Round your answer to 2 decimal places.

*April 10, 2016*

**math**

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 the poultry are geese?

*April 10, 2016*

**math**

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 Alvin score better? (b) What was the percentage difference between Alvin's scores for both tests?

*April 10, 2016*

**math**

There are 54 paintings in the National Museum. The ratio of the number of sculptures to the number of paintings in the museum is 7:9. (a) Express the number od sculptures as a fraction of the number of paintings. (b) How many sculptures are there in the museum? (c) The number ...

*April 10, 2016*

**math**

There were 60 basketball players in the school team last year. This number of basketball players increases to 80. What is the percentage in the number of basketball players?

*April 10, 2016*

**math**

A rice cooker was sold for $60 after a discount of 60%. What was the price of the rice cooker?

*April 10, 2016*

**Algebra**

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 + 2x because a negative ...

*February 10, 2016*

**Algebra**

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 since you can't have...

*November 11, 2015*

**statistics**

51.37

*August 9, 2011*

**statistics**

the mean marks obtained by a group of 100 students was found to 49.46.THE mean marks obtained in the same examination by another group of 200 students was 52.32. Find the mean marks obtained by the both groups of students tken together.

*August 9, 2011*

**algebra**

write the equation of the line in slope intercept form that goes through the given point and is parallel (4,-7),y=1/2x

*January 11, 2011*

**marketing**

what types of sales promotion techniques would you recommend for the following business and why ? BMW dealership

*February 9, 2010*

**physics**

at a ball game consider a baseball of mass m=0.15 that falls directly downward at a speed v=40m/s into the hands of a fan. what impulseft must be supplied to bring the ball to rest? if the ball is stopped in 0.3s, what is the average force of the ball on the catchers hand?

*October 15, 2009*

**physics**

at a ball game consider a baseball of mass m=0.15 that falls directly downward at a speed v=40m/s into the hands of a fan. what impulseft must be supplied to bring the ball to rest? if the ball is stopped in 0.3s, what is the average force of the ball on the catchers hand?

*October 15, 2009*

**science**

solve for the amount of force exerted on an 8-kg ball rolling at 2m/s when it bumps into a pillow and stops in 0.5s. how mush force does the pillow exert on the ball?

*October 15, 2009*

**science**

solve for the amount of force exerted on an 8-kg b

*October 15, 2009*

**math**

6^2x + 1 = 1 3

*February 25, 2009*

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