The total cost of the gallons of gas will be $31.16
Since Chen bought 8 1/2 gallons of gas at $2.30 per gallon, the cost will be:
= 8 1/2 × $2.30
= 8.5 × $2.30
= $19.55
Since he also bought 4 3/10 gallons of gas at $2.70 per gallon, the cost will be:
= 4 3/10 × $2.70
= 4.3 × $2.70
= $11.61
Therefore, the total cost will be the addition of both values gotten and this will be:
= $19.55 + $11.61
= $31.16
Therefore, the total cost is $31.16
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