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xenn [34]
3 years ago
12

5. In a class of 18 students, 2/3 of them speak two languages. How many speak two languages?

Mathematics
1 answer:
Alona [7]3 years ago
4 0

Answer: 12

Step-by-step explanation:

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Prove whether the following inferences are valid using the long or short truth table method. If they are invalid, give the count
bezimeni [28]

Answer:

6

Step-by-step explanation:

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3 years ago
Saul wrote the statements shown in the chart.
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Trip has 15 coins worth 95 cents four coins are worth twice as much as the rest . Construct a math argument to justify the conje
taurus [48]
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4 0
3 years ago
I=prt for t I=105 p=700 and r=0.05
Pachacha [2.7K]
t = 3   

Simple interest will be derived by multiplying the principal, the interest rate, and the term.

Interest = Principal x Rate x Term

Interest = 105
Principal = 700
Rate = 0.05
Term = ?

Based on the Simple Interest formula, 

term = Interest / principal x rate
term = 105 / (700 x 0.05)
term = 105 / 35
term = 3

7 0
3 years ago
3 times a number is 54 less than the square of that number. Find the negative solution.
Pavel [41]

Answer:

x=-6

Step-by-step explanation:

Let x be the number

3x = x^2 -54

Subtract 3x

3x-3x = x^2 -3x-54

0 = x^2 -3x-54

Factor

What 2 numbers multiply to -54 and add to -3

-9*6 = -54

-9+6 = -3

0=(x-9) (x+6)

Using the zero product property

x-9=0    x+6=0

x=9  x=-6

The questions asks for the negative solution

x=-6

3 0
3 years ago
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