LARA

please any one help me for this questionnnnnnnn ý need urgently At the end of the spring term, a high school physics class celebrates by shooting a bundle of exam papers into the town landfill with a homemade catapult. They aim for a point that is 31.1 m...

13 years ago

please any on help me for this question ý need urgently. The position of a particle moving along the x-axis is given by x = 3.49t2 – 2.21t3, where x is in meters and t is in seconds. What is the position of the particle when it achieves its maximum speed...

13 years ago

Determine the concentration of a solution of Mg(NO3)2 given the precipitate formed is 2.97 g and there are 50mL of Mg(NO3)2 and 50 mL of NaOH. Please show all work for each step clearly

13 years ago

This question has mentioned 'pattern of numbers', does that means not just do simple calculation from left to right OR there is a fast way to solve this question, please help. Look at this pattern of numbers. 7x 11 x 13 x 1 = 1001 7x 11 x 13 x 2 = 2002 7x...

11 years ago

lf you added a fifth of one and a quarter to one and a quarter, what would the answer be ? ..... The answers is 1 1/2 have tries 0.2 + 0.25 + 0.75 = 1.20 or 1 1/5 ???? 0.2 + 0.75 + 1 + 0.25 = 2.20 ??? Please help!

11 years ago

Alan is using matchsticks to make isosceles triangles. Isosceles triangles have at least two sides the same length.How many different single isosceles triangles can he make with 45 matchsticks, using all the matchsticks each time? The answer is 11, but I...

11 years ago

A pie is cut into two equal parts. The first part of the pie is shared between Abdul and Kate. Kate has 3 times as much as Abdul. The second part of the pie is shared between Sarah and Ron. Ron has 3/5 as much as Sarah. The mass of Sarah's share of the pi...

11 years ago

The sum of three numbers is 1313. The sum of two of the numbers is 450. What is the third number?

11 years ago

The storekeeper found that if he removed the apples from his box either 2,3,4,5 or 6 at a time there was always one left over. However, if he removed the apples 7 at a time there was no apples left. If the box holds 500 apples, how many apples does the st...

11 years ago

This bank machine has four rows of buttons 1 2 3 4 5 6 7 8 9 0 Sam has a 4-digit bank number that uses one button from each row. For example his bank number could be 0571. How many different possibilities for Sam's bank number are there? The answer should...

11 years ago

Carrie and Luke drank 4/5 of a bottle of juice. Carrie drank half as much as Luke. What fraction of the juice did Carrie drink? Answer given is 4/15

11 years ago

Stacey spent 1/ 6 of her money on a purse and 7/12 more money on a bag than on the purse. What fraction of her money did she spend?

11 years ago

Donna wants to cut out circular discs of radius 7cm from a cardboard measuring 50cm by 70cm. What is the maximum number of circular discs that can be cut out from the cardboard?

11 years ago

The ratio of the number of males to the females at a performance is 5 : 7. 1/4 of the males and 3/4 of the females are children. What is the ratio of the number of adults to children? Express your answer in simplest form.

11 years ago

Mrs Koh bought some pens, files and erasers. The ratio of the number of pens to the number of files to the number of erasers she bought was 1 : 2 : 3. The cost of each pen and eraser is $2.50 and $0.50 respectively. If she spent $60 on the pens and the er...

11 years ago

Tom spent 1/5 of his money and 1/4 of the remainder on a magazine. He had $25.80 left. How much was the magazine? A $5.10 B $6.45 C $8.60 D $7.80

11 years ago

A coin box contained some twenty-cent and fifty-cent coins in the ratio 4:3. After 20 twenty-cent coins were taken out to exchange for fifty-cents coins of the same value and put back in the box, the ratio of the number of twenty-cent coins to the number...

11 years ago

4 girls shared a pizza equally for lunch. If one of them gave away 1/3 of her share, what fraction of the pizza had she left? 1. 1/12 2. 1/6 3. 1/4 4. 2/3

11 years ago

Two different schools (A and B) have the same number of pupils. The ratio of the boys in school A and the boys in school B is 2:1 and the ratio of the girls in school A and the girls in school B is 4:5. Find the ratio of the boys in school A to the girls...

11 years ago

A water tank has the shape of a rectangular prism of base 50 cm2. This tank is being filled at the rate of 12 liters per minutes. Find the rate at which the height of the water in the water tank increases; express your answer in millimeters per second.

11 years ago

walking at 3/4 of his usual speed, a man is late by 2.5 hrs. What is he usual time?

11 years ago

The hot dog cost $2.20 each. Greg sold one hot dog every 2 minutes at a festival. At this rate, how many minutes would it take to sell $110 worth of hot dog? Please help! My result is 100 but the actual correct answers is 25.

6 years ago

Joyce had some money. She bought a dress, a shirt and a watch. She spent 1/5 of her money on a shirt. The shirt cost $24 less than a dress. The watch cost $102. She was left with 1/4 of the amount of money she had at first. How much money did Joyce have a...

6 years ago

Lara is 6 yrs. older than Pamela. What are the present ages if in five years the sum of there is 22?

5 years ago

Thanks Ms. Sue The answer given is 1/6???

11 years ago

Thanks for your help. $110/$2.20per dog = 50 hot dogs so I multiply by 2 instead of divide it by 2 :)

6 years ago