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Find the value of `x^(–3)` if `x = (100)^(1–4) -:

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

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For the following repeater machines, how many times the base machine is applied and how much the total stretch is?

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

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For each hook-up, determine whether there is a single repeater machine that will do the same work. If so, describe or draw it (a) (b) (c) (d)(e)

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

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Neha needs to stretch some sticks to `25^2` times their original lengths, but her `(xx2^5)` machine is broken. Find a hook-up of two repeater machines that will do the same work as a `(xx25^2)` machine. To get started, think about the hookup you could use to replace the `(xx2^5)` machine.

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

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By what number should `(–8)^(–3)` be multiplied so that that the product may be equal to

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

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Ashima took a loan of Rs 1,00,000 at 12% p.a. compounded half yearly. She paid Rs 1,12,360. If (1.06)2 is equal to 1.1236, then the period for which she took the loan

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

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The cost of a book marked at Rs 190 after paying a sales tax of 2% is Rs

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

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Find the M.P. if (a) S.P. = Rs 495 and discount = 1% (b) S.P. = Rs 9,250 and discount = `7

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

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Lemons were bought at Rs 48 per dozen and sold at the rate of Rs 40 per 10. Find the gain or loss per

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

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With the decrease in prices of tea by 15% Tonu, the chaiwallah, was able to buy 2 kg more of tea with the same Rs 45 that he spent each month on buying tea leaves for his chai shop. What was the reduced price of tea? What was the original price of tea?

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

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In a scout camp, there is food provision for 300 cadets for 42 days. If 50 more persons join the camp, for how many days will the provision

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

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l varies directly as m and l is equal to 5, when m = `2/3` . Find l when m = `16/3`

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

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A contractor undertook a contract to complete a part of a stadium in 9 months with a team of 560 persons. Later on, it was required to complete the job in 5 months. How many extra persons should he employ to complete the

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

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From the following table, determine if x and y are in direct proportion or not. x 4 7 10 16 y 24 42 60 96

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

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A water tank casts a shadow 21 m long. A tree of height 9.5 m casts a shadow 8 m long at the same time. The lengths of the shadows are directly proprotional to their heights. Find the height of the tank

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

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Pattern B consists of four tiles like pattern A. Write a proportion involving red dots and blue dots in pattern A and B. Are they in direct proportion? If yes, write the constant of proportion.

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

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1L = 1000

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

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The parallel sides of a trapezium are 40 cm and 20 cm. If its non-parallel sides are both equal, each being 26 cm, find the area of the

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

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Area of a rhombus = `1/2` product of

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

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