Answer:
10 songs
Step-by-step explanation:
Let number of songs Craig and Jeff downloaded be s
5.50 + 0.25s = 0.80s
5.50 = 0.55s
s = 10
Answer:
-15
Step-by-step explanation:
1/-13
The reciprocal is
Because of the law of indices,
We'll have 
= -13.
-1/2
The reciprocal is
1 ÷ -1/2
Because of the law of indices,
We'll have 
= -2
Therefore, the sum would be -13 + (-2) which would be equals to -15.
The expected number of left-handed people in the sample= 45
<h3>Calculation of total number of left-handed</h3>
The number of people selected at random= 450
The percentage of people that are left-handed =10%
Therefore, the number of people that are left-handed,
= 10/100 * 450
= 4500/100
= 45
Learn more about probability here:
brainly.com/question/24756209
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