Answer:
Alex had $196.54 in her account before the purchase.
Step-by-step explanation:
Given:
Amount spend on medicines = $35.31
Balance Amount Remaining = $161.23
We need to find the amount in her account before purchase.
Solution:
Let the amount in her account before purchase be 'x'.
Now we can say that;
Amount in her account before purchase minus Amount spend on medicines is equal to Balance amount remaining.
framing in equation form we get;
Now by Using Addition property of equality we will add both side by 35.31 we get;
Hence Alex had $196.54 in her account before the purchase.
Answer:
X = 6
Step-by-step explanation:
Hope this helped!!
<h3><u><em /></u></h3>
<u><em>maybe mark brainiest</em></u>
Answer:
mean = 2.55
Standard deviation = 1.118
Step-by-step explanation:
Probability of babies who are boys
P = 0.51
Then we have q = 1-p
= 1-0.51
= 0.49
We have n = 5
We calculate the mean as:
np
= 0.51x5
= 2.55
Therefore mean = 2.55
The standard deviation
= √variance
= √npq
= √0.51x5x0.49
=√1.2495
= 1.118
The expression θ = - 50° ± i · 360°, 
represents the family of all angles <em>coterminal</em> with - 50° angle.
<h3>What is the family of angles coterminal to a given one?</h3>
Two angles are <em>coterminal</em> if and only if their end have the <em>same</em> direction. Two <em>consecutive coterminal</em> angles have a difference of 360°. Then, we can derive an expression representing the family of all angles <em>coterminal</em> to - 50° angle.
θ = - 50° ± i · 360°,
The expression θ = - 50° ± i · 360°, represents the family of all angles <em>coterminal</em> with - 50° angle.
<h3>Remark</h3>
The statement is incomplete and complete form cannot be reconstructed. Thus, we modify the statement to determine the family of angles coterminal to - 50° angle.
To learn more on coterminal angles: brainly.com/question/23093580
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