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1) x<20 2) 20-x 3) 6 4) 4

...; -8 ===== 6. (a)(i) x ≤ 20 (a)(ii) Let n be the number of model cars he can have. x ≤ 20 14 + n ≤ 20 n ≤ 6 Hence, he can...

An algebraic expression that involves inequality signs are called inequality. 1. 22 less than or equal to 30 2. 8 books

(a) (i) x &lt;= 20. (ii) Let y be the number of additional cars he can have. Then x = y + 14. From (i), we have...

a(i) The inequality is 14 + x ≤ 20. a(ii) 14 + x ≤ 20 x ≤ 6 ∴He can have at most 6 more model cars. b(i) He can have more than 17 model cars. b(ii) 14 + x > 17 x > 4 ∴He can have at least 4 more model cars.

... his mother is worried that he will spend too much money on...39;The maximum number of model cars that Danny...39;Apart from the condition stated above, I would like the total...

呢條題可以話唔洗計,做唔到純粹因為唔識解 Danny有14架模型車 a)他媽媽限制他最多只可以有20架,設車的數量是x架 i)根據以上條件寫出不等式 ii)由此找出他最多可以再有多幾多架車 b)除以上條件外再增一項條件:Danny要有多於17架模型車 i)根據以上條件,他可以有幾...