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If `a^2 + b^2 = 74` and ab = 35, then find a +

asked Jan 17, 2022 in 8th-maths by yogita (1.8k points)

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The discount on an item for sale is calculated on the

asked Jan 17, 2022 in 8th-maths by Arun (1.7k points)

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The food labels given below give information about 2 types of soup: cream of tomato and sweet corn. Use these labels to answer the given questions. (All the servings are based on a 2000 calorie diet.) (a) Which can be measured more accurately : the total amount of fat in cream of tomato soup or the total amount of fat in sweet corn soup? Explain. (b) One serving of cream of tomato soup contains 29% of the recommended daily value of sodium for a 2000 calorie diet. What is the recommended daily value of sodium in milligrams? Express

asked Jan 17, 2022 in 8th-maths by vaibhav (1.7k points)

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Music CD originally priced at Rs 120 is on sale for 25% off. What is the S.P.? Sonia and Rahul have different ways of calculating the sale price for the items they bought. As you work on the next problem, try both of these methods to see which you

asked Jan 17, 2022 in 8th-maths by Simran (1.8k points)

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A store is having a 25% discount sale. Sheela has a Rs 50 gift voucher and wants to use it to buy a board game marked for Rs 320. She is not sure how to calculate the concession she will get. The sales clerk has suggested two ways to calculate the amount payable. - Method 1: Subtract Rs 50 from the price and take 25% off the resulting price. - Method 2: Take 25% off the original price and then subtract Rs 50. a. Do you think both the methods will give the same result? If not, predict which method

asked Jan 17, 2022 in 8th-maths by Arun (1.7k points)

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Below is the Report Card of Vidit Atrey. Vidit’s teacher left the last column blank. Vidit is not able to make out, in which subject he performed better and in which he needs improvement. Complete the table to help Vidit know his comparative performance.

asked Jan 17, 2022 in 8th-maths by nishit (1.8k points)

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A swimming pool can be filled in 4 hours by 8 pumps of the same type. How many such pumps are required if the pool is to be filled in `2 2/3`

asked Jan 17, 2022 in 8th-maths by purvi (1.8k points)

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The following table shows the distance travelled by one of the new eco-friendly energy-efficient cars travelled on gas. Litres of gas 1 0.5 2 2.5 3 5 Distance (km) 15 7.5 30 37.5 45 75 Which type of properties are indicated by the table? How much distance will be covered by the car in 8 litres of

asked Jan 17, 2022 in 8th-maths by uday (1.6k points)

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Kusum always forgets how to convert miles to kilometres and back again. However she remembers that her car’s speedometer shows both miles and kilometres. She knows that travelling 50 miles per hour is same as travelling 80 kilometres per hour. To cover a distance of 200 km, how many miles Kusum would have to

asked Jan 17, 2022 in 8th-maths by purvi (1.8k points)

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Area of a quadrilateral ABCD is 20 `cm^2` and perpendiculars on BD from opposite vertices are 1 cm and 1.5 cm. The length of BD

asked Jan 17, 2022 in 8th-maths by nikhil (1.8k points)

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A cube of side 3 cm painted on all its faces, when sliced into 1 cubic centimetre cubes, will have exactly 1 cube with none of its faces

asked Jan 17, 2022 in 8th-maths by Simran (1.8k points)

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Find x so that `(–5)^(x+1) xx (–5)^5 =

asked Jan 17, 2022 in 8th-maths by yogita (1.8k points)

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The usual form for `2 xx 10^(–2)` is not equal to

asked Jan 17, 2022 in 8th-maths by nishit (1.8k points)

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Find the value of x so that `(5/3)^(-3) xx (5/3)^(-14) =

asked Jan 17, 2022 in 8th-maths by uday (1.6k points)

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Find the value of x so that `(2^(–1) + 4^(–1) + 6^(–1) + 8^(–1))x =

asked Jan 17, 2022 in 8th-maths by Simran (1.8k points)

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A particular star is at a distance of about `8.1 xx 10^13` km from the Earth. Assuring that light travels at `3 xx 10^8` m per second, find how long does light takes from that star to reach the

asked Jan 17, 2022 in 8th-maths by vaibhav (1.7k points)

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A car travels a distance of 225 km in 25 litres of petrol. How many litres of petrol will be required to cover a distance of 540 kilometres by this

asked Jan 17, 2022 in 8th-maths by Arun (1.7k points)

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Campus and Welfare Committee of school is planning to develop a blue shade for painting the entire school building. For this purpose various shades are tried by mixing containers of blue paint and white paint. In each of the following mixtures, decide which is a lighter shade of blue and also find the lightest blue shade among all of them. If one container has one litre paint and the building requires 105 litres for painting, how many container of each type is required to paint the building by darkest blue

asked Jan 17, 2022 in 8th-maths by uday (1.6k points)

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A packet of sweets was distributed among 10 children and each of them received 4 sweets. If it is distributed among 8 children, how many sweets will each child

asked Jan 17, 2022 in 8th-maths by Simran (1.8k points)

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The surface areas of the six faces of a rectangular solid are 16, 16, 32, 32, 72 and 72 square centimetres. The volume of the solid, in cubic centimetres,

asked Jan 17, 2022 in 8th-maths by Arun (1.7k points)

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