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8090 [49]
3 years ago
10

Evaluate expression when r= 9 3 (5r-3)-2 (6r-7)

Mathematics
1 answer:
Mama L [17]3 years ago
7 0

Answer:

47

Step-by-step explanation:

Substitute the value of the variable into the equation and simplify.


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Convert 213base four to base5​
kakasveta [241]

Answer:

213 in base 4 = 124 in base 5

Step-by-step explanation:

First we convert base 4 to base 10

213 in base 4

2*42 + 1*41 + 3*40

32 + 4 + 3

39 in base 10

Now we convert base 10 to base 5

39/5  

7/5  r = 4

1 r = 2

124 in base 5

Hence 213 in base 4 = 124 in base 5

4 0
3 years ago
If the odds against Deborahs winning first prize in a chess tournament are 1 to 11 what is the probability of the event that she
Lemur [1.5K]

Answer: \dfrac{11}{12}

Step-by-step explanation:

Given

The odds against winning in a chess tournament are 1 to 11.

Odds is defined as the ratio of the probability of occurrence to the non-occurrence of event.

\therefore \text{Probability that event will occur is P'=}\dfrac{1}{1+11}\\\\\Rightarrow P'=\dfrac{1}{12}

Probability of non-occurrence i.e. she wins the first prize is

\Rightarrow P=1-\dfrac{1}{12}\\\\\Rightarrow P=\dfrac{11}{12}

7 0
3 years ago
What is 2/(40)+16 to the 17 power
Anna007 [38]
311,225,823,387,830,850,069

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3 0
3 years ago
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At the toy store a $120 doll house is on sale for 40%? what is the amount
Sergeeva-Olga [200]

Answer:

$72

Step-by-step explanation:

Multiply $120*0.40 to see how much money is being taken off, this equals $48. Remember that this $48 is how much you want to remove from $120, so 120-48=72.

6 0
3 years ago
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Writing a linear equations
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