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Artyom0805 [142]
3 years ago
12

7. Bruno noticed today's gasoline price at the local convenience store was advertised as $3.40 per gallon. This price is 15% abo

ve last year's price. Calculate last year's price. $ 3.55 O $ 3.25 O $ 2.96 O $ 2.40​

Mathematics
2 answers:
Leona [35]3 years ago
8 0

Answer:

I'm pretty sure it $2.96

ivann1987 [24]3 years ago
5 0

Answer:

option c) $ 2.96

Step-by-step explanation:

15% = 15 /100 = 0.15

Let last year's price = $ x

x + 15% of x = $ 3.40

x + 0.15*x = 3.40

x + 0.15x = 3.40    {Add like terms}

1.15x = 3.40   {Divide both sides by 1.15}

1.15x/1.15=3.40/1.15

x = 2.956

Last year's price = $ 2.96

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