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Deveshi has a total of Rs 590 as currency notes in the denominations of Rs 50, Rs 20 and Rs 10. The ratio of the number of Rs 50 notes and Rs 20 notes is 3:5. If she has a total of 25 notes, how many notes of each denomination she

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

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If you subtract `1/2` from a number and multiply the result by `1/2`, you get `1/8`. What isthe

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

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The number of boys and girls in a class are in the ratio 7:5. The number of boys is 8 more than the number of girls. What is the total class

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

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Solve `5x + 7/2 =

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

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Find the number of sides of a regular polygon whose each exterior angle has a measure of

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

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The following figures GUNS and RUNS are parallelograms. Find x and y. (Lengths are in cm)

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

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Construct a quadrilateral ABCD, where AB = 4 cm, BC = 5 cm, CD = 6.5 cm and ∠B = 105° and ∠C =

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

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Is it possible to construct a rhombus ABCD where AC = 6 cm and BD = 7 cm? Justify your

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

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Find the cube root of each of the following numbers by prime factorisation method.

asked Jan 17, 2022 in 8th-maths by uday (1.6k 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 17, 2022 in 8th-maths by Arun (1.7k points)

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Complete the table of products. First monomial → Second monomial ↓ `2x` `-5y` `3x^2` `-4xy` `7x^2 y` `–9x^2 y^2` `2x ` `4x^2` . . . . . . . . . . . . . . . `–5y` . . . . . . `–15x^2 y` . . . . . . . . . `3x^2` . . . . . . . . . . . . . . . `– 4xy` . . . . . . . . . . . . .

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

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Obtain the product of a, 2b, 3c, 6abc

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

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Multiply (x – y) and (3x +

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

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Simplify. `(x + y)(2x + y) + (x + 2y)(x – y)`

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

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Use the Identity `(x + a) (x + b) = x^2 + (a + b) x + ab` to find the following `501 xx 502`

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

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Simplify. `(ab + bc)^2 – 2ab^2c`

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

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Show that. `(3x + 7)^2 – 84x = (3x –

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

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Using identities, evaluate. `78 xx 82`

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

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Using `(x + a) (x + b) = x^2 + (a + b) x + ab`, find `103 xx 104`

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

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Following are the car parking charges near a railway station upto 4 hours Rs 60 8 hours Rs 100 12 hours Rs 140 24 hours Rs 180Check if the parking charges are in direct proportion to the parking

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

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