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IrinaVladis [17]
3 years ago
7

How do you Solve. 21r<7

Mathematics
2 answers:
myrzilka [38]3 years ago
7 0

Answer:

r <  \frac{1}{3}  \\

Step-by-step explanation:

21 \: r < 7 \\  \frac{21 \: r}{21}  <  \frac{7}{21}  \\ r <  \frac{1}{3}

<em>hope</em><em> </em><em>this</em><em> </em><em>helps</em>

<em>brainliest</em><em> </em><em>appreciated</em>

<em>good</em><em> </em><em>luck</em><em>!</em><em> </em><em>have</em><em> </em><em>a</em><em> </em><em>nice</em><em> </em><em>day</em><em>!</em><em> </em>

kirza4 [7]3 years ago
4 0

Answer:

r < 1/3

Step-by-step explanation:

21r<7

Divide each side by 21

21r/21<7/21

r < 1/3

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RideAnS [48]

Answer:

3/4

Because 6 are not white so 6/8 and divide each by 2

6 divided by 2 = 3

8 divided by 2 = 4

= 3/4

Step-by-step explanation:

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Bill drove 715 miles in 11 hours.
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3 years ago
Solve this system by substitution. y = 3 y = -3x + 6 *Remember to write your answer as a coordinate point (x, y). I​
DochEvi [55]

Answer:

(1, 3)

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>Algebra I</u>

  • Coordinates (x, y)
  • Solving systems of equations using substitution/elimination

Step-by-step explanation:

<u>Step 1: Define Systems</u>

y = 3

y = -3x + 6

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

  1. Substitute in <em>y</em>:                                                                                                 3 = -3x + 6
  2. [Subtraction Property of Equality] Subtract 6 on both sides:                      -3 = -3x
  3. [Division Property of Equality] Divide -3 on both sides:                                1 = x
  4. Rewrite/Rearrange:                                                                                        x = 1

<u>Step 3: Solve for </u><em><u>y</u></em>

  1. Define original equation:                                                                               y = -3(1) + 6
  2. Multiply:                                                                                                           y = -3 + 6
  3. Add:                                                                                                                 y = 3
6 0
3 years ago
What ordered pair is the solution to -7x+3y=2
goldenfox [79]

Answer:

Step-by-step explanation:

3y=7x+2

y=\frac{7x+2}{3}\\x=1,y=3\\

one pair is (1,3)

go on adding  3 in x=1,you get corresponding value of y.

x=4,y=10,(4,10)

and so on .

7 0
4 years ago
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