sarahlaboy4
contestada

joe bought g: gallons of gasoline for $2.85 per gallon and c: cans for oil for 3.15 dollars.

Part A:what expression can be used go determine the total amount joe spent on gasoline and oil?

part B:if he bought 8.4 gallons of gasoline and 6 cans of oil, how much will he have spent in all?


please help! thank you :D​

Respuesta :

supersyd05
A) 2.85g+3.15c
B)2.85(8.4)+3.15(6)=$42.84

You can make an algebraic expression for evaluating total amount spent by Joe.

Part A:  The expression is:  [tex]t = 2.85g + 3.15c[/tex]

Part B:  Total amount on 8.4 gallons of gasoline and 6 cans of oil is: $42.84

Given that:

  • Joe bought g gallons of gasoline for $2.85 per gallon
  • Joe bought c cans of oil for $3.15 per can

To find:

  • Expression for total cost
  • Total cost if Joe buys 8.4 gallons of gasoline and 6 cans of oil.

Finding expression for total cost:

Total cost( t, say) = g times 2.85 + c times 3.15

[tex]t = 2.85g + 3.15c[/tex]

Finding total cost if g = 8.4 and c = 6:

Putting the values in above obtained equations:

[tex]t = 2.85g + 3.15c\\ t = 2.85 \times 8.4 + 3.15 \times 6\\ t = 23.94 + 18.9 = \$42.84[/tex]

Thus:

Part A:  The expression is:  [tex]t = 2.85g + 3.15c[/tex]

Part B:  Total amount on 8.4 gallons of gasoline and 6 cans of oil is: $42.82

Learn more about linear equation here:

https://brainly.com/question/812654

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