Electricity: 23.15 cents p/day plus 13.5 cents p/unit used Gas price: 24.5 cents p/day plus 5.5 cents p/unit used (a)(i) In 90 days, a family used 1885 units of electricity. Calculate the total cost, in dollars, of the electricity they used.

answer: $275.31(n of days x price p/day) + (n units used x price p/unit)(90 x 23.15) + (1885 x 13.5) = 27531 CENTS27531 CENTS = 275,31 DOLLARS

Answered by Maths tutor

2831 Views

See similar Maths GCSE tutors

Related Maths GCSE answers

All answers ▸

How would I expand 3 brackets, e.g. (x + 3)(x + 4)(x + 2)?


Which of these fractions is the largest - 33/56 ,4/7, 9/21, 6/14


Expand (x+3)(x+1).


How do you factorise?


We're here to help

contact us iconContact usWhatsapp logoMessage us on Whatsapptelephone icon+44 (0) 203 773 6020
Facebook logoInstagram logoLinkedIn logo

© MyTutorWeb Ltd 2013–2025

Terms & Conditions|Privacy Policy
Cookie Preferences