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

2933 Views

See similar Maths GCSE tutors

Related Maths GCSE answers

All answers ▸

How should I calculate the values of a and b when a(4x+12) is equivalent to 2x+36b?


Solve the quadratic equation, x^2 - 4x -5 = 0


n is an integer such that 3n+2<14 and 6n > n2 +5. Find all the values of n.


Solve the equation x^2 + 10x + 24 = 0


We're here to help

contact us iconContact ustelephone icon+44 (0) 203 773 6020
Facebook logoInstagram logoLinkedIn logo

© MyTutorWeb Ltd 2013–2025

Terms & Conditions|Privacy Policy
Cookie Preferences