5 x 42p = £2.10
42p-1 = 5p+4 42p = 5p+5 37p = 5 p = 5/37 p = 0.135135...
42% or 21/50
35 p/kg x 1.2 kg = 42p
Amount needed: 7 times 6p = 42p
42p 18/3 x 7 = 6 x 7 = 42
algebra8p +4 = 10 +6p+8p - 6p = +10 - 42p = 6p = 3
0845 numbers are charged at rates up to 5p/minute from a BT landline, up to 42p/minute from a mobile phone. 0870 numbers are charged at rates up to 8p/minute from a BT landline, up to 42p/minute from a mobile. Most "inclusive" plans do not include calls to either 0845 or 0870 numbers, but do include calls to 01, 02, and 03 numbers.
4.20 = 420p 42*10 = 420p 10 times greater
For a 1992 Ford Explorer 4.0 liter OHV engine : fordparts.com shows : Motorcraft AWSF-42C ( copper ) or Motorcraft AWSF-42P-P ( platinum ) ( as of March 11 , 2012 )
the cost of one kg is 35p 200g is 1/5 of 1kg (1/5 of 1000) therefore you have to find 1/5 of 35p which equals 7. Therefore 35p + 7p = 42p
In the UK, 0844 numbers are charged at up to 5p/minute from BT landlines, and up to 42p/minute from mobiles. Toll-free numbers are 0800 or 0808. There are still some 0500 freephone numbers, but they will probably be discontinued. Mobiles still pay for access to most freephone numbers.