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Verdich [7]
3 years ago
5

Define the variables for the situation janas age plus 3 equals her sisters age

Mathematics
1 answer:
jenyasd209 [6]3 years ago
4 0

j = Jana's age

s = sister's age    (because you don't know what their ages are)

j + 3 = s

<u>Jana's age</u>(j) <u>plus</u>(+) 3 <u>equals</u>(=) her <u>sister's age</u>(s).

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what is the sum of the prime numbers of 420 do not repeat any prime factors A 15 B 16 C.17 D. 18 E. 19
Mars2501 [29]

Answer:

C)

Step-by-step explanation:

Prime factorization of 420 = 2 × 2 × 3 × 5 × 7 = 22 × 3 × 5 × 7.

If you take...

2 + 2 + 3 + 5 + 7...

You would get 17.

Hope this helps! :) Good Luck!

<em>-kiniwih426</em>

5 0
3 years ago
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4 years ago
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7 0
3 years ago
Julie's MP3 player contains 860 songs. If 20% of the songs are rap songs and 15% of the songs are R&amp;B songs, how many of the
docker41 [41]
Total number of songs in Julie's MP3 player = 860
Percentage of rap songs in Julie's MP3 player = 20%
Then
Number of rap songs in Julie's MP3 player = (20/100) * 860
                                                                     = 860/5
                                                                     = 172
Percentage of R&B songs in Julie's MP3 player = 15%
Then
Number of R&B songs in Julie's MP3 player = (15/100) * 860
                                                                        = 1290/10
                                                                         = 129
So
The number of other types of songs in Julie's MP3 player = 860 - (172 + 129)
                                                                                             = 860 - 301
                                                                                             = 559
So the number of other types of songs in Julie's MP3 player was 559.
5 0
3 years ago
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