What is the answer for number 15 16 17
Answers
6 pachages
each pcage has 30
6*30=180 total
17 left over
how many used
used=total-left over
used=180-17
used=163
16. xy is 2 digit number
multiplules of 10 (whole multipules) always end with 0 so y=0
and has 3 as one of its factors
factors of 3 is 3,6,9,12
30,60,90 is answer
17.
30 in 9 parks
30 times 9
30=10 times 3
3*10*9
group the 3 and 9
10*(3*9)
3*9=27
10*(27)
270
15. 163
16. 30,60,90
17. see above, 270
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Answers
It will triple four times by 40 min.
This can be shown as 3 to the power of 4; 3⁴ = 81
Original length * growth factor = final length
1 mm * 81 = final length
81 = final length
After 40 mins, the bacteria colony will be 81 mm in length.
Answers
B. 4n + 11 < -9
C. -4n +11 < -9
D. -4n + 11 > -9
(Please show your work:) )
Answers
(Subtract 11 from both sides)
4n > -20
(Divide both sides by 4)
n > -5
Because we have found that dividing the negative number by 4 does not work, we know B is also wrong.
Not C because:
(Subtract 11 from both sides)
-4n < -20
(Divide each side by -4)
(Reverse inequality sign because you are dividing by a negative number)
n > 5
So, it must be D!
Here's why:
(Subtract 11 from both sides)
-4n > -20
(Divide each side by -4)
(Reverse inequality sign because you are dividing by a negative number)
n < 5
Hope this helps!
4n + 11 > -9
4n > -9 - 11
4n > -20
n > -20/4
n > -5
This does not give the required solution of n < -5
B would give n < -5, this would also not be correct.
Let us try option C
-4n + 11 < -9
-4n < -9 -11
-4n < -20
n > -20/-4 since we divided by -ve, the sign changes.
n > 5 this does not give the answer as well.
-4n + 11 > -9
-4n > -9 -11
-4n > -20
Divide both sides by 4 and the sign changes.
-4n/4 < -20/-4
n < 5
This is the required solution. So option D gives that solution.
Hope this helps.
Answers
Answers
Step 2: simplify 135/1000 = 27/200
Language arts 78.5 60 14.2
Social studies 68.7 65 9.8
She claims that because the mean number of words on each page of the language arts book is greater than the mean number of words on each page of the social studies book, the language arts book has more words per page. Based on the data, is this a valid inference?
Yes, because there is a lot of variability in the language arts book data
No, because there is a lot of variability in the language arts book data
Yes, because the mean is larger in the language arts book
No, because the mean is larger in the social studies book
Answers
Answer:
No, because there is a lot of variability in the language arts book data
Step-by-step explanation: