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vlabodo [156]
3 years ago
9

For his long-distance phone service, Jim pays a $3 monthly fee plus 11 cents per minute. Last month, Jim's long-distance bill wa

s $21.48. For how many minutes was Jim billed?
Mathematics
1 answer:
Ymorist [56]3 years ago
7 0

Answer:

168

Step-by-step explanation:

3 + .11x = 21.48

.11x = 18.48

x = 168

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-- Each has 4 sides.
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What's 6 1/3 + 5 1/2 + 4 1/4=​
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Answer:

16  1/12

Step-by-step explanation:

The LCD of 6 1/3 + 5 1/2 + 4 1/4 is 12; 12 is evenly divisible by 3, 2 and 4.

We can rewrite this expression as:

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4 0
3 years ago
Determine if (-2,6) and (4,12) are solutions to the system of equations:
kykrilka [37]

Answer:

Both (-2,6) and (4,12) are solutions to the system.

Step-by-step explanation:

In order to determine whether the two given points represent solutions to our system of equations, we must "plug" thos points into both equations and check that the equality remains valid.

Step 1: Plug (-2,6) into y=x+8

(6) = (-2)+8 = 6

The solution verifies the equation.

Step 2: Plug (-2,6) into 2y=x^2 + 8

2(6) = (-2)^2+8=4+8=12

The solution verifies both equations. Therefore, (-2,6) is a solution to this system.

Now we must check if the second point is also valid.

Step 3: Plug (4,12) into y=x+8

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The solution verifies both equations. Therefore, (4,12) is another solution to this system.

3 0
3 years ago
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