#$&*
course mth 158
9/5 2
Question: If you make $50 in 5 hr, then at what rate are you earning money?YYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYY
Your solution:
50/5= 10 you are earning $10 an hour
confidence rating #$&*:
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3
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Self-critique Rating:
ok
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Question: `q003.If you make $60,000 per year then how much do you make per month?
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Your solution:
60,000/ 12= 5,000 you will make 5,000 per month
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3
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Self-critique Rating:
ok
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Question: `q004. Suppose that the $60,000 is made in a year by a small business. Would be more appropriate to say that the business makes $5000 per month, or that the business makes an average of $5000 per month?
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Your solution:
It is best to say the business makes about $5000 per month because depending on business and expenses in each month is how much the business will make. They can make more than 5000 in one month and make less the next.
confidence rating #$&*:
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3
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Self-critique Rating:
ok
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Question: `q005. If you travel 300 miles in 6 hours, at what average rate are you covering distance, and why do we say average rate instead of just plain rate?
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Your solution:
The average rate is 50 miles per hour by dividing 300 by 6
The reason we say average is because of the different traffic conditions and the pressure on the accelerator.
confidence rating #$&*:
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3
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Self-critique Rating:
ok
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Question: `q006. If you use 60 gallons of gasoline on a 1200 mile trip, then at what average rate are you using gasoline, with respect to miles traveled?
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Your solution:
60/ 1200=0.05 gallons/ mile
confidence rating #$&*:
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3
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Self-critique Rating:
ok
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Question: `q007. The word 'average' generally connotes something like adding two quantities and dividing by 2, or adding several quantities and dividing by the number of quantities we added. Why is it that we are calculating average rates but we aren't adding anything?
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Your solution:
We have already added the total in miles or money and we are now just finding the average.
confidence rating #$&*:
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3
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Self-critique Rating:
ok
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Question: `q008. In a study of how lifting strength is influenced by various ways of training, a study group was divided into 2 subgroups of equally matched individuals. The first group did 10 pushups per day for a year and the second group did 50 pushups per day for year. At the end of the year to lifting strength of the first group averaged 147 pounds, while that of the second group averaged 162 pounds. At what average rate did lifting strength increase per daily pushup?
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Your solution:
162-147=15
50-10=40
15/40=.375 pounds/ pushups
confidence rating #$&*:
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3
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Self-critique Rating:
ok
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Question: `q009. In another part of the study, participants all did 30 pushups per day, but one group did pushups with a 10-pound weight on their shoulders while the other used a 30-pound weight. At the end of the study, the first group had an average lifting strength of 171 pounds, while the second had an average lifting strength of 188 pounds. At what average rate did lifting strength increase with respect to the added shoulder weight?
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Your solution:
188-171=17
30-10=20
17/20=.85 lifting pounds
confidence rating #$&*:
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3
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Self-critique Rating:
ok
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Question: `q010. During a race, a runner passes the 100-meter mark 12 seconds after the start and the 200-meter mark 22 seconds after the start. At what average rate was the runner covering distance between those two positions?
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Your solution:
100/10=10 meters/second
confidence rating #$&*:
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3
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Self-critique Rating:
ok
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Question: `q011. During a race, a runner passes the 100-meter mark moving at 10 meters / second, and the 200-meter mark moving at 9 meters / second. What is your best estimate of how long it takes the runner to cover the intervening 100 meter distance?
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Your solution:
100 meters/ 9.5m/s= 10.5 seconds
confidence rating #$&*:
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2
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Self-critique Rating:
ok
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Question: `q012. We just averaged two quantities, adding them and dividing by 2, to find an average rate. We didn't do that before. Why we do it now?
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Your solution:
Everything before was a constant and the one with the two had two different rates we needed to average to get the correct answer.
confidence rating #$&*:
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2
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Self-critique Rating:
ok"
Self-critique (if necessary):
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Self-critique rating:
ok"
Self-critique (if necessary):
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Self-critique rating:
#*&!
@&
Good.
However you appear to be eliminating the given solutions. This is a bad idea for two reasons.
The first reason is that you might want to refer to some of those solutions on your portfolio page.
The second is that you might accidentally delete some of the codes I need to efficiently process your work (that hasn't been a problem here, but could be at some point).
So you should insert your answers into a copy of the document, but don't delete any of the document itself.
*@
ok"
Self-critique (if necessary):
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Self-critique rating:
#*&!
@&
Good.
However you appear to be eliminating the given solutions. This is a bad idea for two reasons.
The first reason is that you might want to refer to some of those solutions on your portfolio page.
The second is that you might accidentally delete some of the codes I need to efficiently process your work (that hasn't been a problem here, but could be at some point).
So you should insert your answers into a copy of the document, but don't delete any of the document itself.
*@
#*&!
ok"
Self-critique (if necessary):
------------------------------------------------
Self-critique rating:
#*&!
@&
Good.
However you appear to be eliminating the given solutions. This is a bad idea for two reasons.
The first reason is that you might want to refer to some of those solutions on your portfolio page.
The second is that you might accidentally delete some of the codes I need to efficiently process your work (that hasn't been a problem here, but could be at some point).
So you should insert your answers into a copy of the document, but don't delete any of the document itself.
*@
#*&!#*&!