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Lady bird [3.3K]
4 years ago
15

the cost of a phone call lasting 3 minutes 30 seconds was 52.5 cents . at this rate what was the cost of a call lasting 5 minute

s 20 second
Mathematics
1 answer:
Effectus [21]4 years ago
6 0

Answer:

80 cents

Step-by-step explanation:

The easiest place to start for this is to calculate how much it costs per minute of call time. To do this, if we know that it costs 52.5 cents to call for 3.5 minutes, we can divide those two numbers to get how much it costs per minute.

52.5/3.5 = 15

If it costs 15 cents per minute, and we want to know how much it would cost to call for 5.33 (5 and 1/3 of a minute), then we multiply our 15 cents a minute by the number of minutes to get the final cost.

15 x 5.33 = 79.99

Because we can't have 99/100 cents, rounding up to 80 is important to get a proper answer.

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1,000,000

Step-by-step explanation:

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with vertices D(2, 5), E(6, 4), and F(3, 3), is reflected across the line A student determined one of the vertices on the image
Nezavi [6.7K]
The vertices of the image reflected over the line y = x are:
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6 0
4 years ago
PLEASE HELP ME
creativ13 [48]

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increase

Step-by-step explanation:

I think that when ice and snow increases there would be less clouds therefore, the Earth will absorbs more radiation.

6 0
3 years ago
Simplify each polynomial 2x^2+8-4x+3x-6x6^2+7
Naddika [18.5K]

Answer:


Step-by-step explanation:

2

x

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+

8

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from  

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+

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3

x

+

7

Add  

8

and  

7

.

−

4

x

2

−

4

x

+

3

x

+

15

Add  

−

4

x

and  

3

x

.

−

4

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2

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x

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6 0
3 years ago
I need help on this.
juin [17]

Answer:

3

Step-by-step explanation:

All the triangles are similar, so ...

... 3/y = y/27 . . . . . ratio of short side to long side

... 81 = y² . . . . . . . . multiply by 27y

... 9 = y

The Pythagorean theorem tells you ...

... z² = 3² + 9² = 9 +81

... z² = 90 = 9·10

... z = √(9·10) = 3√10

Green Box: 3

4 0
3 years ago
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