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Assoli18 [71]
3 years ago
7

Help I need to get this done I have 15 questions

Mathematics
1 answer:
ivanzaharov [21]3 years ago
4 0

Answer:

8 cm

Step-by-step explanation:

(See the image attached for details)

  • The blue segment measures 15 cm
  • The green segment measures 7 cm
  • The green and yellow segment when added form the blue segment
  • So: ? + 7 = 15

Solve:

? + 7 = 15

Subtract 7 on both sides:

? + 7 = 15

   -7     -7

? = 8 cm

Therefore, the yellow segment, or the missing side length, measures 8 cm.

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Number of weekend minutes used: x
Number of weekday minutes used: y

This month Nick was billed for 643 minutes:
(1) x+y=643

The charge for these minutes was $35.44
Telephone company charges $0.04 per minute for weekend calls (x)
and $0.08 per minute for calls made on weekdays (y)
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(1) x+y=643
(2) 0.04x+0.08y=35.44

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Isolating x from the first equation:
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(3) x=643-y

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Answers:
The number of weekends minutes used was 400
The number of weekdays minutes used was 243
6 0
2 years ago
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