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madreJ [45]
3 years ago
6

One cell phone plan costs $29.94 per month plus $.10 for MB of data. Another plan costs $32.99 per month

Mathematics
1 answer:
liubo4ka [24]3 years ago
5 0
Plan 1 = 29.94 + 0.10x
Plan 2 = 32.99 + 0.05x

Plan 1 = Plan 2
29.94 + 0.10x = 32.99 + 0.05x
0.10x - 0.05x = 32.99 - 29.94
0.05x = 3.05
0.05x/0.05 = 3.05/0.05
x = 61

61 MB of data is needed to make both plan equal.

to check: x = 61

29.94 + 0.10(61) = 32.99 + 0.05(61)
29.94 + 6.10 = 32.99 + 3.05
36.04 = 36.04

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He bought 12 oranges.

Step-by-step explanation:

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7.75-2.35= 5.4

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Drag the correct description to tell whether the graph represents a function.
Anna007 [38]

Using the function concept, it is found that:

  • The 1st graph is not a function.
  • The 2nd and the 3rd graph are functions.

<h3>What is a function?</h3>
  • In a <em>function</em>, <u>one value of the input can be related to only one value of the output</u>.
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In this problem:

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To learn more about the function concept, you can take a look at brainly.com/question/12463448

4 0
2 years ago
What is the length of CD? In this diagram, AABC ~ AEDC. 20-% c * 7 21​
d1i1m1o1n [39]

Answer:

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\frac{20-x}{x} =3

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So, CD=5

<u>OAmalOHopeO</u>

<u />

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