Https://www.khanacademy.org/math/algebra/rational-exponents-and-radicals/alg1-rational-exp-eval/v/ne...
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Answer:
a=9
Step-by-step explanation:
2/3 (a-18)=-6
a−18=−6×( 3/2)
a−18=−6×3/2
a−18= −18/2
a−18=−9
a=−9+18
a=9
(total bill)*(percent of bill)=(money paid for that part of bill)
total bill=$132.00
electric %= 0.58 (1-.42)
gas %= 0.42
132*.42=55.44
132*.58=76.56
The Millers paid $55.44 for their gas bill. The Millers paid $76.56 for their electric.
**you can check this because $76.56+$55.44=$132
When they finish the independent reading it would be 9:40
