Carly and tom mason keep records of their expenditures. They want to know much they spend each month, on the average. Their reco
rds for four months are shown below. What is their average monthly expenditure?
1 answer:
Answer:
The average expenditure is $4586.32
Step-by-step explanation:
January: $5,678.54
February: $3,665.77
March: $4,231.98
April: $4,768.99
The average monthly expenditure is the sum of all expenditures computed/number of months
Jan+Fev+Mar+Apr/4 = 5,678.54 + 3,665.77 + $4,231.98 + $4,768.99/4 = 18,345/4 = 4586.32
So, the average expenditure is $4586.32
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Answer:
146%
Step-by-step explanation:
If the percent change is positive, it is a percent increase.
If the percent change is negative, it is a percent decrease.
Your numbers are
old price = $0.92
new price = $2.26
Plug in the numbers in the formula above and evaluate the expression.
percent change = ($2.26 - $0.92)/($0.92) * 100%
percent change = ($1.34)/($0.92) * 100%
percent change = 1.4565 * 100%
percent change = 146%
Since the percent change is a positive number, it is a percent increase.
Answer: The percent increase is 146%.
<h3>Answer: 5.5 which is choice B</h3>
Have a look at the diagram I posted below. I marked on your image to add in another angle. This angle is also 20 degrees because of congruent alternate interior angles (horizontal lines are parallel). This angle I add in is the reference angle of the triangle
opposite the reference angle is the vertical side x
adjacent to the reference angle is the horizontal side 15
We'll use the tangent rule. Make sure your calculator is in degree mode.
tan(angle) = opposite/adjacent
tan(20) = x/15
15*tan(20) = x <<-- multiply both sides by 15
x = 15*tan(20)
x = 5.45955 <<--- use calculator; this is approximate
x = 5.5 <<--- round to one decimal place