Question
Could someone please check my math questions? My answers are under the questions...
32. Six times a number less than ten is eight. Find the number.
a. 1/3
b. 3
c. -1/3
d. -3
My Answer ~ b
33. Jane works at the public library after school. She makes $7.00 per hour. She cannot work more than 15 hours per week. If y = 7x represents Jane's earning, what are the values in the solution set?
a. x < 15
b. 0 < x < 15
c. 1 < x < 15
d. All real numbers
My Answer~ a
32. Six times a number less than ten is eight. Find the number.
a. 1/3
b. 3
c. -1/3
d. -3
My Answer ~ b
33. Jane works at the public library after school. She makes $7.00 per hour. She cannot work more than 15 hours per week. If y = 7x represents Jane's earning, what are the values in the solution set?
a. x < 15
b. 0 < x < 15
c. 1 < x < 15
d. All real numbers
My Answer~ a
Answers
Steve
<u>Six times a number less than ten</u>
So, is that
(Six times a number) less than ten: 10-6x=8
or Six times (a number less than ten): 6(10-x)=8
?
Either way, it's not 3
You solved
6x-10 = 8
x<15 allows for negative hours. Bzzzt.
The reasonable choice is thus
0 <= x <= 15
But the way the question is worded that is not available. For (b) to be the answer it should have read
Jane must work less than 15 hours per week.
"Not more" is not the same as "less than"
So, is that
(Six times a number) less than ten: 10-6x=8
or Six times (a number less than ten): 6(10-x)=8
?
Either way, it's not 3
You solved
6x-10 = 8
x<15 allows for negative hours. Bzzzt.
The reasonable choice is thus
0 <= x <= 15
But the way the question is worded that is not available. For (b) to be the answer it should have read
Jane must work less than 15 hours per week.
"Not more" is not the same as "less than"