Recent questions tagged chapter9

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During school hours, Neha finished 73% of her homework and Minakshi completed 5/8 of her homework. Who must finish a greater per cent of

asked Jan 18, 2022 in 8th-maths by nikhil (1.8k points)

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Rain forests are home to 90,000 of the 2,50,000 identified plant species in the world. What per cent of the world’s identified plant species are found in rain

asked Jan 18, 2022 in 8th-maths by vaibhav (1.7k points)

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Madhu’s room measures 6m × 3m. Her carpet covers 8m2. What per cent of floor is covered by the

asked Jan 18, 2022 in 8th-maths by vaibhav (1.7k points)

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The human body is made up mostly of water. In fact, about 67% of a person’s total body weight is water. If Jyoti weights 56 kg, how much of her weight is

asked Jan 18, 2022 in 8th-maths by sumit (1.6k points)

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The per cent of pure gold in 14 carat gold is about 58.3%. A 14 carat gold ring weighs 7.6 grams. How many grams of pure gold are in the

asked Jan 18, 2022 in 8th-maths by Arun (1.7k points)

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A student used the proportion `n/100 = 5/32`to find 5% of 32. What did the student do

asked Jan 18, 2022 in 8th-maths by purvi (1.8k points)

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The table shows the cost of sunscreen of two brands with and without sales tax. Which brand has a greater sales tax rate? Give the sales tax rate of each brand. Cost (in Rs) Cost+Tax (in Rs) 1. X (100 gm) 2. Y (100 gm) 7062 7565

asked Jan 18, 2022 in 8th-maths by uday (1.6k points)

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Add: 7xy + 5yz – 3zx, 4yz + 9zx – 4y , –3xz + 5x –

asked Jan 18, 2022 in 8th-maths by Simran (1.8k points)

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Subtract `5x^2 – 4y^2 + 6y – 3` from `7x^2 – 4xy + 8y^2 + 5x –

asked Jan 18, 2022 in 8th-maths by purvi (1.8k points)

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Identify the terms, their coefficients for each of the following expressions. `5xyz^2 – 3zy`

asked Jan 18, 2022 in 8th-maths by nikhil (1.8k points)

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Identify the terms, their coefficients for each of the following expressions. `1 + x +

asked Jan 18, 2022 in 8th-maths by uday (1.6k points)

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Identify the terms, their coefficients for each of the following expressions. `4x^2y^2 – 4x^2y^2z^2 +

asked Jan 18, 2022 in 8th-maths by vaibhav (1.7k points)

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Identify the terms, their coefficients for each of the following expressions. 3 – pq + qr –

asked Jan 18, 2022 in 8th-maths by yogita (1.8k points)

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Identify the terms, their coefficients for each of the following expressions.

asked Jan 18, 2022 in 8th-maths by yogita (1.8k points)

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Identify the terms, their coefficients for each of the following expressions. 0.3a – 0.6ab +

asked Jan 18, 2022 in 8th-maths by Arun (1.7k points)

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Classify the following polynomials as monomials, binomials, trinomials. Whichpolynomials do not fit in any of these three categories?`x + y, 1000, x + x^2 + x^3 + x^4, 7 + y + 5x, 2y – 3y^2, 2y – 3y^2 + 4y^3, 5x – 4y + 3xy, 4z – 15z^2, ab + bc + cd + da, pqr, p^2q + pq^2, 2p +

asked Jan 18, 2022 in 8th-maths by nikhil (1.8k points)

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Add the following. ab – bc, bc – ca, ca – ab

asked Jan 18, 2022 in 8th-maths by yogita (1.8k points)

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Add the following. a – b + ab, b – c + bc, c – a +

asked Jan 18, 2022 in 8th-maths by nikhil (1.8k points)

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Add the following. `2p^2q^2 – 3pq + 4, 5 + 7pq –

asked Jan 18, 2022 in 8th-maths by vaibhav (1.7k points)

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Add the following. `l^2 + m^2, m^2 + n^2, n^2 + l^2, 2lm + 2mn +

asked Jan 18, 2022 in 8th-maths by nishit (1.8k points)

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