Math, asked by abidayub15, 11 months ago

1) the integer that is its own additive inverse is_____
2) multiplying the denominator of a fraction by 1/3 will give ____the value of the fraction.
3) The cost of 3/8 kg onions is ₹15. What is the cost of 1 kg of onions?

Answers

Answered by santy2
0

Answer:

1) The integer that is its own additive inverse is 0 (zero)

2) Multiplying the denominator of a fraction by 1/3 will give 3 times  the value of the fraction.

3) The cost of 3/8 kg onions is ₹15. What is the cost of 1 kg of onions?

The cost 1 kg onions is Rs. 40

Step-by-step explanation:

1) The integer that its own additive inverse is 0

The additive inverse of a number, is a number in which when you add to the original number the answer is 0

If y is the additive inverse of x, the x+y = 0

Example: -7 is the additive inverse of 7

               Therefore -7 + 7 = 0

0 is the additive inverse of itself since, 0 + 0 = 0

2) Multiplying the denominator of a fraction by 1/3 will give 3 times  the value of the fraction.

   Calculation:

1/9 when denominator is divided by 1/3 then, the answer will 3 times 1/9:

1/9 denominator divided by 1/3 ⇒ 1 / (9 × 1/3) = 1 / (9/3) = 1/3

1/3 = 1/9 × 3

Therefore a fraction when its denominator is multiplied by a 1/3, then the answer is 3 times the original fraction.

3) The cost of 3/8 kg onions is ₹15. What is the cost of 1 kg of onions?

The cost 1 kg onions is Rs. 40

If 3/8 kg  = Rs . 15

Then 1 kg (8/8) = Rs. 15 × 8/8 kg × 8/3 kg

                      =  Rs. 15 × 8/3 = 5 × 8

                      = Rs . 40

The price of 1 kg of onions thus is Rs. 40

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