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प्रश्न
During summer, the level of the water in a pond decreases by 2 inches every week due to evaporation. What is the change in the level of the water over a period of 6 weeks?
बेरीज
उत्तर
Level of water decreases a week = 2 inches.
Level of water decreases in 6 weeks = 6 × 2 = 12 inches
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पाठ 1: Number System - Exercise 1.3 [पृष्ठ २१]
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संबंधित प्रश्न
Replace the blank with an integer to make it a true statement.
5 × _____ = –35
Replace the blank with an integer to make it a true statement.
_____ × (–12) = 132
−80 × ____ = −80
100 × ___ = −500
_____ × 75 = 0
8 × (−4) = 32
We get additive inverse of an integer a when we multiply it by ______.
(–1) is not a multiplicative identity of integers.
| Column I | Column II |
| (a) a × 1 | (i) Additive inverse of a |
| (b) 1 | (ii) Additive identity |
| (c) (–a) ÷ (–b) | (iii) Multiplicative identity |
| (d) a × (–1) | (iv) a ÷ (–b) |
| (e) a × 0 | (v) a ÷ b |
| (f) (–a) ÷ b | vi) a |
| (g) 0 | (vii) –a |
| (h) a ÷ (–a) | (viii) 0 |
| (i) –a | (ix) –1 |
Determine the integer whose product with (–1) is 0.
