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antoniya [11.8K]
3 years ago
11

Please help ! in class and don't understand!

Mathematics
1 answer:
Alex777 [14]3 years ago
4 0

Answer:

I'll do the first one and lets see if that helps

Step-by-step explanation:

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weeeeeb [17]
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-28 -28
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A first number plus twice a second number is 88. twice the first number plus the second totals 3131. find the numbers.
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Use the function rule y=5x+1. What is y when x=3
Dmitry_Shevchenko [17]

Answer:

y = 16

(3, 16)

General Formulas and Concepts:

<u>Pre-Algebra</u>

Order of Operations: BPEMDAS

  1. Brackets
  2. Parenthesis
  3. Exponents
  4. Multiplication
  5. Division
  6. Addition
  7. Subtraction
  • Left to Right

Step-by-step explanation:

<u>Step 1: Define</u>

y = 5x + 1

x = 3

<u>Step 2: Evaluate</u>

  1. Substitute in <em>x</em>:                    y = 5(3) + 1
  2. Multiply:                               y = 15 + 1
  3. Add:                                     y = 16
7 0
3 years ago
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Ivenika [448]

Step-by-step explanation:

since it's an Equilateral triangle

then:

g=15

h=96°

5 0
2 years ago
Help help help ASAP math math
Lorico [155]
29 mg = 0.029 g hope this helps
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3 years ago
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