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IrinaVladis [17]
3 years ago
5

I need help with algebra please

Mathematics
1 answer:
aleksley [76]3 years ago
6 0
Check your answers when you think you have got it done
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Which of these numbers are greater than 3. 2 × 10-3? 2. 1 × 10-3 4. 2 × 10-4 5. 2 × 10-2 5. 2 × 10-1.
leonid [27]

Answer:

your answer would be 4.2 x 10-4

Step-by-step explanation:

8 0
2 years ago
What is 2/3 x 4 1/5 as a mixed fraction?
EleoNora [17]
=2/3 x 4 1/5
Change 4 1/5 to improper fraction
=2/3 x 21/5

Multiply the two numerators together and multiply the two denominators together

= (2*21)/(3*5)
=42/15

Convert back to mixed fraction

= 2 12/15
Simplify by dividing 3 into top & bottom

ANSWER:
= 2 4/5 simplest mixed fraction

Hope this helps! :)
6 0
3 years ago
Read 2 more answers
Someone help me with my algebra homework please
Alla [95]

Answer:

15

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  

Equality Properties

  • Multiplication Property of Equality
  • Division Property of Equality
  • Addition Property of Equality
  • Subtraction Property of Equality<u> </u>

Step-by-step explanation:

<u>Step 1: Define</u>

<em>Identify</em>

5a - 10b = 45

<em>b</em> = 3

<u>Step 2: Solve for </u><em><u>a</u></em>

  1. Substitute in <em>b</em> [Equation]:                                                                                5a - 10(3) = 45
  2. Multiply:                                                                                                             5a - 30 = 45
  3. [Addition Property of Equality] Add 30 on both sides:                                  5a = 75
  4. [Division Property of Equality] Divide 5 on both sides:                                  a = 15
7 0
3 years ago
Read 2 more answers
(2(2 •10^6)=<br> What does this equal
mihalych1998 [28]

Answer:

54

Step-by-step explanation:

3.1 2 6 divided by 2 2 = 2 (6 - 2) = 2 4. Dividing exponents : 3.2 5 6 divided by 5 2 = 5 (6 - 2) = 5 4

4 0
3 years ago
Solve triangle ABC if AB=24.6, BC=29.7, and CA=30
PtichkaEL [24]
Triangle ABC equals 84.3
8 0
3 years ago
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