Question

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88 points​

Answer 1

Step-by-step explanation:

Let Nishu take x days to complete the work alone.

Let Nishu take x days to complete the work alone.∴ Total work done by Nishu in 1 day = 1x

Let Nishu take x days to complete the work alone.∴ Total work done by Nishu in 1 day = 1xAlso, Pintu takes (x + 6) days to complete the work alone.

Let Nishu take x days to complete the work alone.∴ Total work done by Nishu in 1 day = 1xAlso, Pintu takes (x + 6) days to complete the work alone.∴ Total work done by Pintu in 1 day = 1x+6

Let Nishu take x days to complete the work alone.∴ Total work done by Nishu in 1 day = 1xAlso, Pintu takes (x + 6) days to complete the work alone.∴ Total work done by Pintu in 1 day = 1x+6Total work done by both in 1 day = (1x + 1x+6)

Let Nishu take x days to complete the work alone.∴ Total work done by Nishu in 1 day = 1xAlso, Pintu takes (x + 6) days to complete the work alone.∴ Total work done by Pintu in 1 day = 1x+6Total work done by both in 1 day = (1x + 1x+6)But, both take 4 days to complete the work together.

Let Nishu take x days to complete the work alone.∴ Total work done by Nishu in 1 day = 1xAlso, Pintu takes (x + 6) days to complete the work alone.∴ Total work done by Pintu in 1 day = 1x+6Total work done by both in 1 day = (1x + 1x+6)But, both take 4 days to complete the work together.∴ Total work done by both in 1 day = 14

Let Nishu take x days to complete the work alone.∴ Total work done by Nishu in 1 day = 1xAlso, Pintu takes (x + 6) days to complete the work alone.∴ Total work done by Pintu in 1 day = 1x+6Total work done by both in 1 day = (1x + 1x+6)But, both take 4 days to complete the work together.∴ Total work done by both in 1 day = 14∴ 4(2x + 6) = x(x + 6)

Let Nishu take x days to complete the work alone.∴ Total work done by Nishu in 1 day = 1xAlso, Pintu takes (x + 6) days to complete the work alone.∴ Total work done by Pintu in 1 day = 1x+6Total work done by both in 1 day = (1x + 1x+6)But, both take 4 days to complete the work together.∴ Total work done by both in 1 day = 14∴ 4(2x + 6) = x(x + 6)∴ 8x + 24 = x2 + 6x

Let Nishu take x days to complete the work alone.∴ Total work done by Nishu in 1 day = 1xAlso, Pintu takes (x + 6) days to complete the work alone.∴ Total work done by Pintu in 1 day = 1x+6Total work done by both in 1 day = (1x + 1x+6)But, both take 4 days to complete the work together.∴ Total work done by both in 1 day = 14∴ 4(2x + 6) = x(x + 6)∴ 8x + 24 = x2 + 6x∴ x2 + 6x – 8x – 24 = 0

Let Nishu take x days to complete the work alone.∴ Total work done by Nishu in 1 day = 1xAlso, Pintu takes (x + 6) days to complete the work alone.∴ Total work done by Pintu in 1 day = 1x+6Total work done by both in 1 day = (1x + 1x+6)But, both take 4 days to complete the work together.∴ Total work done by both in 1 day = 14∴ 4(2x + 6) = x(x + 6)∴ 8x + 24 = x2 + 6x∴ x2 + 6x – 8x – 24 = 0∴ x2 – 2x – 24 = 0

Let Nishu take x days to complete the work alone.∴ Total work done by Nishu in 1 day = 1xAlso, Pintu takes (x + 6) days to complete the work alone.∴ Total work done by Pintu in 1 day = 1x+6Total work done by both in 1 day = (1x + 1x+6)But, both take 4 days to complete the work together.∴ Total work done by both in 1 day = 14∴ 4(2x + 6) = x(x + 6)∴ 8x + 24 = x2 + 6x∴ x2 + 6x – 8x – 24 = 0∴ x2 – 2x – 24 = 0∴ x2 – 6x + 4x – 24 = 0

Let Nishu take x days to complete the work alone.∴ Total work done by Nishu in 1 day = 1xAlso, Pintu takes (x + 6) days to complete the work alone.∴ Total work done by Pintu in 1 day = 1x+6Total work done by both in 1 day = (1x + 1x+6)But, both take 4 days to complete the work together.∴ Total work done by both in 1 day = 14∴ 4(2x + 6) = x(x + 6)∴ 8x + 24 = x2 + 6x∴ x2 + 6x – 8x – 24 = 0∴ x2 – 2x – 24 = 0∴ x2 – 6x + 4x – 24 = 0∴ x(x – 6)+ 4(x – 6) = 0

Let Nishu take x days to complete the work alone.∴ Total work done by Nishu in 1 day = 1xAlso, Pintu takes (x + 6) days to complete the work alone.∴ Total work done by Pintu in 1 day = 1x+6Total work done by both in 1 day = (1x + 1x+6)But, both take 4 days to complete the work together.∴ Total work done by both in 1 day = 14∴ 4(2x + 6) = x(x + 6)∴ 8x + 24 = x2 + 6x∴ x2 + 6x – 8x – 24 = 0∴ x2 – 2x – 24 = 0∴ x2 – 6x + 4x – 24 = 0∴ x(x – 6)+ 4(x – 6) = 0∴ (x – 6) (x + 4) = 0

Answer 2

Answer:

A special property of acids and bases is their ability to neutralize the other's properties. In an acid-base (or neutralization) reaction, the H+ ions from the acid and the OH- ions from the base react to create water (H2O). Another product of a neutralization reaction is an ionic compound called a salt. tnq❤️