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Lerok [7]
3 years ago
14

34k+(6.3−8.1k)÷0.9=22

Mathematics
1 answer:
KATRIN_1 [288]3 years ago
8 0

We have been given an equation 34k+(6.3-8.1k)\div 0.9=22. We are supposed to solve our given equation for k.

We can rewrite our given equation as:

34k+\frac{6.3-8.1k}{0.9}=22

Let us multiply both sides of equation by 0.9.

34k\cdot 0.9+\frac{6.3-8.1k}{0.9}\cdot 0.9=22\cdot 0.9

30.6k+6.3-8.1k=19.8

22.5k+6.3=19.8

22.5k+6.3-6.3=19.8-6.3

22.5k=13.5

\frac{22.5k}{22.5}=\frac{13.5}{22.5}

k=0.6

Therefore, the value of the k is 0.6.

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Suppose that you draw two cards from a deck. After drawing the first card, you do not put the first card back in the deck. What
S_A_V [24]

Answer:

(B) 0.0588

Step-by-step explanation:

The probability is calculated as a division between the number of possibilities that satisfy a condition and the number of total possibilities. Then, the probability that the first card is diamonds is:

P_1=\frac{13}{52}

Because the deck has 52 cards and 13 of them are diamonds.

Then, if the first card was diamonds, the probability that the second card is also diamond is:

P_2=\frac{12}{51}

Because now, we just have 51 cards and 12 of them are diamonds.

Therefore, the probability that both cards are diamonds is calculated as a multiplication between P_1 and P_2. This is:

P=\frac{13}{52}*\frac{12}{51}=\frac{1}{17}=0.0588

8 0
3 years ago
M divided by 19 = -2<br><br> (Find m)
seropon [69]
M=38 I hope it helps
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5 0
3 years ago
2.432 2.09 2.190 2.37 least to greatest
Rus_ich [418]
2.09, 2.190, 2.37, 2.432

Hope this helps!
5 0
4 years ago
Read 2 more answers
What are the fourth roots of -3+3√3i?
barxatty [35]

Answer:

Set  

−

3

+

3

√

3

i

equal to  

0

.

−

3

+

3

√

3

i

=

0

Since  

−

3

+

3

√

3

i

≠

0

, there are no solutions.

Step-by-step explanation:

3 0
3 years ago
(08.01, 8.02 MC) An expression is shown below: 18x3y − 9x2y − 72xy3 + 36y3 Part A: Rewrite the expression so the GCF is factored
vitfil [10]

Answer:

9y(2x - 1)(x - 2y)(x + 2y)

Step-by-step explanation:

Given

18x³y - 9x²y - 72xy³ + 36y³ ← factor out 9y from each term

= 9y(2x³ - x² - 8xy² + 4y²)

Factor the first/second and third/fourth term in the parenthesis

= 9y( x²(2x - 1) - 4y²(2x - 1)) ← factor out (2x - 1) from each term

= 9y(2x - 1)(x² - 4y²)

x² - 4y² is a difference of squares and factors in general as

a² - b² = (a - b)(a + b), thus

x² - 4y²

= x² - (2y)² = (x - 2y)(x + 2y), hence

18x³y - 9x²y + 72xy³ + 36y³

= 9y(2x - 1)(x - 2y)(x + 2y) ← in factored form

7 0
3 years ago
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