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butalik [34]
3 years ago
5

There are 10 girls and 6 boys in a class. The teacher randomly draws one student's name and then draws another. What is the prob

ability that the first name drawn will be a boy and the second will be a girl? (Please show work so I can understand)
60%
23.4%
16%
25%
Mathematics
2 answers:
Katen [24]3 years ago
8 0

Answer:

D 25%

Step-by-step explanation:

kumpel [21]3 years ago
6 0

Answer:

25%

Step-by-step explanation:

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zoe wrote 3/5 of her essay in 30 minutes. assuming she wrote the paper at a constant rate the entire time, which expression can
vodomira [7]
3/5 in 30 mins, 5*30=150, then she would write 3/150 or 1/50 each minute
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3 years ago
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The sum of two consecutive natural numbers is 525.<br> Find the numbers.
Luda [366]

Answer:

262 and 263 are consecutive natural numbers whose sum is 525.

Step-by-step explanation:

Natural number are a subset of real numbers consisting in positive integers (i.e. 1, 2, 3, 525) and two natural numbers are consecutive when distance between each other is equal to 1. (|x-y| = 1, \forall\,x,y \in \mathbb{N}) We can interpret the statement mathematically by means of the following expression:

x + y = 525

x = n

y = n+1

Where x, y, n \in \mathbb{N}.

This system is reduced to a single equation and solved afterwards:

n +(n+1) = 525

2\cdot n + 1 = 525

2\cdot n = 524

n = 262

Now we evaluate x and y to obtain the natural numbers:

x = 262

y = 263

262 and 263 are consecutive natural numbers whose sum is 525.

3 0
3 years ago
Given the exponential equation 4x = 64, what is the logarithmic form of the equation in base 10?
zysi [14]
4^{x} = 64

By taking <span>logarithmic of base 10

∴ </span><span>log 4^{x} = log 64

∴ x log 4 = log 64

∴ x =  \frac{log \ 64}{log \ 4}
note: we don't need to write the base in case of the base =10

∴ The correct choice is
</span><span>x = log base 10 of 64, all over log base 10 of 4</span>

3 0
3 years ago
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Dainel paid $22 for a water bottle. This amount includes 5% tax. What was the cost of the item befor tax?
Oksana_A [137]
20.90 would be the item before tax. To get the amount of tax, I multiplied 20 by 0.05 and subtracted that amount from 22
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Timothy stated that the sum of 0.9 + (-9/10) was 18/20.
Evgesh-ka [11]

Answer:

18/10

Step-by-step explanation:

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3 years ago
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