Question

Explain The above attachment Questions .
Quality Answer Required .​

Answer 1

EXPLANATION.

Question = 8.

-15/7 on the number line will be represent between.

As we know that,

⇒ -15/7 = x.

Divide - 15/7 we get,

⇒ -2.14 = x.

It lies between,

⇒ - 2 < x < -3.

Option [B] is correct answer.

Question = 9.

(-4/9)/p = 8/15.

We can write equation as,

⇒ -4/9/p = 8/15.

⇒ -4/9 x 1/p = 8/15.

⇒ -4/9p = 8/15.

⇒ (-4)(15) = (8)(9p).

⇒ - 60 = 72p.

⇒ p = - 60/72.

⇒ p = - 5/6.

Option [B] is correct answer.

Question = 10.

x is a rational number.

such that,

⇒ (x) X (x) = x.

⇒ x² = x.

⇒ x = 1.

Option [C] is correct answer.

Question = 11.

Rational number which their own reciprocals,

As we know that,

⇒ 1 = -1.

⇒ -1 = 1.

⇒ 1 and -1.

Option [A] is correct answer.

Question = 12.

⇒ 0/-7/5.

As we know that,

If we divide any number with 0 their results is = 0.

Option [C] is correct answer.

Question = 13.

⇒ 5/12 - 7/18.

Taking L.C.M in this equation, we get.

⇒ 15 - 14/36.

⇒ 1/36.

Option [C] is correct answer.

Question = 14.

Sum of two rational number = 3/7.

One of the number is = -3/10.

Other number is,

⇒ a + b = 3/7.

⇒ -3/10 + b = 3/7.

⇒ b = 3/7 + 3/10.

Taking L.C.M in equation, we get.

⇒ b = 30 + 21/70.

⇒ b = 51/70.

Option [C] is correct answer.

Answer 2

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Question = 8.

-15/7 on the number line will be represent between.

As we know that,

⇒ -15/7 = x.

Divide - 15/7 we get,

⇒ -2.14 = x.

It lies between,

⇒ - 2 < x < -3.

Option [B] is correct answer.

Question = 9.

(-4/9)/p = 8/15.

We can write equation as,

⇒ -4/9/p = 8/15.

⇒ -4/9 x 1/p = 8/15.

⇒ -4/9p = 8/15.

⇒ (-4)(15) = (8)(9p).

⇒ - 60 = 72p.

⇒ p = - 60/72.

⇒ p = - 5/6.

Option [B] is correct answer.

Question = 10.

x is a rational number.

such that,

⇒ (x) X (x) = x.

⇒ x² = x.

⇒ x = 1.

Option [C] is correct answer.

Question = 11.

Rational number which their own reciprocals,

As we know that,

⇒ 1 = -1.

⇒ -1 = 1.

⇒ 1 and -1.

Option [A] is correct answer.

Question = 12.

⇒ 0/-7/5.

As we know that,

If we divide any number with 0 their results is = 0.

Option [C] is correct answer.

Question = 13.

⇒ 5/12 - 7/18.

Taking L.C.M in this equation, we get.

⇒ 15 - 14/36.

⇒ 1/36.

Option [C] is correct answer.

Question = 14.

Sum of two rational number = 3/7.

One of the number is = -3/10.

Other number is,

⇒ a + b = 3/7.

⇒ -3/10 + b = 3/7.

⇒ b = 3/7 + 3/10.

Taking L.C.M in equation, we get.

⇒ b = 30 + 21/70.

⇒ b = 51/70.

Option [C] is correct answer.