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Serjik [45]
2 years ago
9

3x -5y=2x + 10 standard form

Mathematics
2 answers:
Serga [27]2 years ago
7 0
Y=(x-10)/5 or y=(x/5)-2
Artist 52 [7]2 years ago
7 0
3x-5y=2x+10
3x-2x=5y+10
x=5y+10
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In a statistics class there are 18 juniors and 10 seniors; 6 of the seniors are females and 12 of the juniors are males. If a st
Natasha_Volkova [10]

Answer:

P(a junior or a senior)=1

Step-by-step explanation:

The formula of the probability is given by:

P(A)=\frac{n(A)}{N}

Where P(A) is the probability of occurring an event A, n(A) is the number of favorable outcomes and N is the total number of outcomes.

In this case, N is the total number of the students of statistics class.

N=18+10=28

The probability of the union of two mutually exclusive events is given by:

P(AUB)=P(A)+P(B)

Therefore:

P(a junior or a senior) =P(a junior)+P(a senior)

Because a student is a junior or a senior, not both.

n(a junior)=18

n(a senior)=10

P(a junior)=18/28

P(a senior) = 10/28

P(a junior or a senior) = 18/28 + 10/28

Solving the sum of the fractions:

P(a junior or a senior) = 28/28 = 1

4 0
3 years ago
What is the output value of (4x+2)(x-5)/2 using input value of x=2
Firdavs [7]

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

Step-by-step explanation:

<u>Step 1: Define</u>

(4x + 2)(x - 5) / 2

x = 2

<u>Step 2: Evaluate</u>

  1. Substitute:                             (4 · 2 + 2)(2 - 5) / 2
  2. Parenthesis - Multiply:          (8 + 2)(2 - 5) / 2
  3. Parenthesis - Add:                10(2 - 5) / 2
  4. Parenthesis - Subtract:         10(-3) / 2
  5. Multiply:                                 -30 / 2
  6. Divide:                                    -15
6 0
3 years ago
Read 2 more answers
Resuma o tema operações com números positivos e negativos POR FAVOR RESPONDA CERTO E RÁPIDO É URGENTE!
wlad13 [49]

Adição (+)

Positivo + Positivo = Positivo

Negativo + Negativo = Negativo

Positivo + Negativo ou Negativo + Positivo

• use o maior número e seu sinal, subtraia

Subtração (-)

Negativo - Positivo = Negativo

Positivo - Negativo = Positivo

Negativo - Negativo = Negativo + Positivo

• use o maior número e seu sinal, subtraia

Multiplicação (x)

Positivo x Positivo = Positivo

Negativo x Negativo = Positivo

Negativo x Positivo = Negativo

Positivo x Negativo = Negativo

• alterar os negativos duplos para um positivo

Divisão (÷)

Positivo ÷ Positivo = Positivo

Negativo ÷ Negativo = Positivo

Negativo ÷ Positivo = Negativo

Positivo ÷ Negativo = Negativo

• alterar os negativos duplos para um positivo

3 0
3 years ago
Need help asap!!!!!!!!!!
boyakko [2]

Answer:

Triangles ABC and DCB are congruent by SAS

Step-by-step explanation:

Angle CAB is congruent to angle CDB. Side DB is congruent to side AC. Then Ab is congruent to side CD.

7 0
2 years ago
Which is the best estimate for 37% of 293?
Trava [24]
A.75
37% of 293 is 108.41 so ya
7 0
3 years ago
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