Okay I would like to know if the following problem are correct. Also on the 2nd page on number 10, I need help on it! THANKS!
Here is the link:
Page 1: http://tinypic.com/r/2a2107/6
Page 2: http://tinypic.com/r/256s9cw/6
Here is the link:
Page 1: http://tinypic.com/r/2a2107/6
Page 2: http://tinypic.com/r/256s9cw/6
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All answers not mentioned here are correct.
#2 is incorrect. Everything is fine until last division. You even wrote 135/15, which is 9, but you have 27 instead (which is 135/5)
#4 is incorrect. Same mistake as #2, except with −135/−15 (again it should be 9)
#7 is incorrect. You were correct up to n = 4/12, but this means n = 1/3 (not 3)
#9. You correctly calculated x, but this is not what the question asks
x is Jim's age, 2x is Bill's age, so you answer should be:
Bill is 28, Jim is 14
#10.
Cost of soda = 3 * $1.00 = $3.00
Cost of salads = 2 * $3.00 = $6.00
Total bill = $21.00
Cost of pizza = $21.00 − $3.00 − $6.00 = $12.00
Each friend's share of the pizza = $12.00 / 3 = $4.00
#2 is incorrect. Everything is fine until last division. You even wrote 135/15, which is 9, but you have 27 instead (which is 135/5)
#4 is incorrect. Same mistake as #2, except with −135/−15 (again it should be 9)
#7 is incorrect. You were correct up to n = 4/12, but this means n = 1/3 (not 3)
#9. You correctly calculated x, but this is not what the question asks
x is Jim's age, 2x is Bill's age, so you answer should be:
Bill is 28, Jim is 14
#10.
Cost of soda = 3 * $1.00 = $3.00
Cost of salads = 2 * $3.00 = $6.00
Total bill = $21.00
Cost of pizza = $21.00 − $3.00 − $6.00 = $12.00
Each friend's share of the pizza = $12.00 / 3 = $4.00