Question

The Schwartz family spent a total of $111.75 for Internet service for 3 months. Each month they received $5.50 as a credit on the bill. Which equation and solution shows the cost of their monthly Internet service before the credit? 3 (x + 5.50) = 111.75; the monthly Internet service is $31.75 3 (x minus 5.50) = 111.75; the monthly Internet service is $42.75 One-third (x minus 5.50) = 111.75; the monthly Internet service is $42.75 One-third (x + 5.50) = 111.75; the monthly Internet service is $31.75

Answer 1

SOLUTION

TO CHOOSE THE CORRECT OPTION

The Schwartz family spent a total of $111.75 for Internet service for 3 months. Each month they received $ 5.50 as a credit on the bill. Which equation and solution shows the cost of their monthly Internet service before the credit

• 3 (x + 5.50) = 111.75; the monthly Internet service is $31.75

• 3 (x - 5.50) = 111.75; the monthly Internet service is $42.75

• 1/3 (x - 5.50) = 111.75; the monthly Internet service is $42.75

• 1/3 (x + 5.50) = 111.75; the monthly Internet service is $31.75

EVALUATION

Let the monthly Internet service is $ x

Now it is given that each month they received $5.50 as a credit on the bill.

So the Schwartz family spent the total amount for Internet service for 3 months

= $ 3(x + 5.50)

Now it is given that Schwartz family spent a total of $111.75 for Internet service for 3 months

So by the given condition

3(x + 5.50) = 111.75

We now solve for x

$\sf{3(x + 5.50) = 111.75}$

$\sf{ \implies \: (x + 5.50) =37.25}$

$\sf{ \implies \:x = 31.75}$

FINAL ANSWER

Hence the correct option is

3 (x + 5.50) = 111.75 ; the monthly Internet service is $31.75

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Answer 2

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