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tigry1 [53]
3 years ago
7

There are 46 animals in a farmyard. some are cows and some are chickens. in total there are 104 legs. how many chickens are ther

e?
Mathematics
1 answer:
Andrei [34K]3 years ago
4 0
There are 40 chickens
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P(A)=7/20,P(B)=3/5,P(A∩B)=21/100 ,P(A∪B)=?
icang [17]
P(A U B) = P(A) +P(B) - P(AB) \\  \\ = \frac{7}{20} +\frac{3}{5} - \frac{21}{100} \\  \\ = \frac{35}{100} +\frac{60}{100} - \frac{21}{100}  \\  \\ =\frac{74}{100}  \\  \\ =\frac{37}{50}
6 0
3 years ago
Ten times a number, x, is one-half the sum of the number and three. Find an equation that represents this situation.
DENIUS [597]



10x=1/2(x+3) is the answer 
6 0
3 years ago
Erika is working on solving the exponential equation 50x = 17; however, she is not quite sure where to start. using complete sen
Kryger [21]

Erika is working on solving the exponential equation 50^x = 17; The solution is x = 0.7242.

<h3>What is logarithm?</h3>

When you raise a number with an exponent, there comes a result.

Let's say you get

a^b = c

Then, you can write 'b' in terms of 'a' and 'c' using a logarithm as follows

b = \log_a(c)

'a' is called base of this log function. We say that 'b' is the logarithm of 'c' to base 'a'

Erika is working on solving the exponential equation 50^x = 17;

however, she is not quite sure where to start.

The equation is

50^x = 17\\

By taking the log both sides

log_a b = x\\\\a_x = b

By using the base formula

log_0 y = \dfrac{logy}{log b}

So, log_{50} 17= x\\\\

x = \dfrac{log17}{log 50}

x = 0.7242

Learn more about logarithm here:

brainly.com/question/20835449

#SPJ1

3 0
2 years ago
What is 117.5% as a decimal
trasher [3.6K]
Move the decimal 2 places to the right to get 1.175.
8 0
3 years ago
What is the mean of 7, 5, 9, 5, and 12
Kryger [21]
The mean is: 7.6
The range is: 7
The median is: 7
The mode is: 5
:)
5 0
3 years ago
Read 2 more answers
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