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Karolina [17]
3 years ago
11

The graph shows the calling charges of two cell phone companies. At how many minutes do the two companies charge the same amount

?
Α. Ο
B. 15
C. 20
D 4

Mathematics
2 answers:
Vinvika [58]3 years ago
5 0

Answer: The answer would be C

Step-by-step explanation:

The two lines intersect on (20, 6) so that means that the charging rates were the same when on that point. And since it is asking for how many minutes they charge at the same amount, that would make it 20.

Nitella [24]3 years ago
4 0
I believe that would be C.
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The length of a bacterial cell is about 3 x 10−6 m, and the length of an amoeba cell is about 4.5 x 10−4 m. How many times small
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The bacterial cell is 6.67 x 10⁻³ times smaller than the amoeba cell.

<h3>What is an expression?</h3>

Expression in maths is defined as the collection of the numbers variables and functions by using signs like addition, subtraction, multiplication, and division.


Numbers (constants), variables, operations, functions, brackets, punctuation, and grouping can all be represented by mathematical symbols, which can also be used to indicate the logical syntax's order of operations and other features.

Given that the length of a bacterial cell is about 3 x 10⁻⁶ m, and the length of an amoeba cell is about 4.5 x 10−⁻⁴ m.

The size of the cell will be calculated as below:-

B / A = ( 3 x 10⁻⁶ m ) / ( 4.5 x 10−⁻⁴ m )

B / A = 6.67 x 10⁻³

Therefore, the bacterial cell is 6.67 x 10⁻³ times smaller than the amoeba cell.

To know more about expression follow

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Sine theta equals square root of 3 over 2 find theta.
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Find GH.<br><br> 4.6<br><br> 3.6<br><br> K<br><br> 3.6<br><br> G<br><br> GH=
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Answer:

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Step-by-step explanation:

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Jason had 2 dices what is the probabilty that it will land on 6 on all the dices
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At the beginning of an experiment, the temperature of a solution was 48°C. During a 6-hour
ExtremeBDS [4]

9514 1404 393

Answer:

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Step-by-step explanation:

At the end of the first 6 hours, the temperature change was ...

  (-2.2 K/h)(6 h) = -13.2 K

The change in the next 4 hours was ...

  (1.8 K/h)(4 h) = 7.2 K

Then the total change over the 10-hour period was ...

  (-2.2)(6) +(1.8)(4) . . . . . expression for temperature change

This evaluates to -13.2 +7.2 = -6.

__

The final temperature is the sum of the initial temperature and the temperature change:

  final temperature = 48 °C -6 °C = 42 °C

_____

<em>Additional comment</em>

When temperature is measured on the Celsius scale, a change of 1 degree is called a kelvin (K).

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