Answer:
Step-by-step explanation:
because you put each thing to the power
Maya is researching energy costs. She made a table of the cost for different numbers of gallons of gasoline. How much will 12 ga
llon cost?
A.$7.80
B.$23.40
C. $31.20
D. not enough information
A.$7.80
B.$23.40
C. $31.20
D. not enough information
2 answers:
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Answer:
Step-by-step explanation:
Represent Alice with A, her friend with F and you with Y.
From the question, we have:
--- Twice as much Alice means 2 times Alice's earnings
--- 2 less than her friend
Required
Determine the total amount
Substitute for A in
Substitute for F in
The total amount is calculated by adding the earnings of Alice, her friend and you
<em>Hence, the total earnings is 5d - 2</em>