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blsea [12.9K]
2 years ago
12

HELP, WILL GIVE 100 POINTS

Mathematics
1 answer:
Inessa [10]2 years ago
5 0

Answer:

It's A trust me! :D

Step-by-step explanation:

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A number is decreased by seven. Then, the new number is multiplied by 3 to get an answer of -9.
podryga [215]

Answer:

regular 4 is correct

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4 0
2 years ago
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Write a expression to express k less than double 3.5. THANKS
Arada [10]

k<2(3.5) or simplified k<7

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3 years ago
0=9x^2-49<br> can someone show me how to find the zeroes step by step?
Molodets [167]

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3 0
2 years ago
I am a 3-digit number. If you switch my first and last digits, I decrease by 297. Also, my
malfutka [58]

Answer:

  • 865

Step-by-step explanation:

Let the 3-digit number is <u>abc</u> = 100a + 10b + c.

<u>We have:</u>

  • 100a + 10b + c - 100c - 10b - a = 297
  • b = a - 6
  • a = 2c - 2

<u>Simplify the first equation:</u>

  • 99a - 99c = 297
  • a - c = 3
  • a = c + 3

<u>Solve for c by substitution:</u>

  • 2c - 2 = c + 3
  • 2c - c = 3 + 2
  • c = 5

<u>Find a:</u>

  • a = 3 + 5 = 8

<u>Find b:</u>

  • b = 8 - 2 = 6

<u>The number is:</u>

  • 865
3 0
2 years ago
PLEASE HELP I AM STRUGGLING!
allsm [11]

Answer:

SSS

Step-by-step explanation:

IM CORRECT

4 0
3 years ago
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