(a)
(i) \(\frac{1}{2}\) × 24 = 12
(ii) \(\frac{1}{2}\) × 46 = 23
(b)
(i) \(\frac{2}{3}\) × 18 = 12
(ii) \(\frac{2}{3}\) × 27 = 18
(c)
(i) \(\frac{3}{4}\) × 16 = 12
(ii) \(\frac{3}{4}\) × 36 = 27
(d)
(i) \(\frac{4}{5}\) × 20 = 16
(ii) \(\frac{4}{5}\)× 35 = 28
Write equations for the following statements:
(i) The sum of numbers x and 4 is 9.
(ii) 2 subtracted from y is 8.
(iii) Ten times a is 70.
(iv) The number b divided by 5 gives 6.
(v) Three-fourth of t is 15.
(vi) Seven times m plus 7 gets you 77.
(vii) One-fourth of a number x minus 4 gives 4.
(viii) If you take away 6 from 6 times y, you get 60.
(ix) If you add 3 to one-third of z, you get 30