Jamila is making a triangular wall with building blocks. The top row has one block, the second row has three, the third has five, and so on. How many rows can she make with a set of 100 blocks?
a.
10 rows
c.
20 rows
b.
15 rows
d.
25 rows
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OpenStudy (anonymous):
a
OpenStudy (anonymous):
thank. can u help me with two more? pls?
OpenStudy (anonymous):
i mean one more.
OpenStudy (anonymous):
A construction company will be fined for each day it is late completing its current project. The daily fine will be $4000 for the first day and will increase by $1000 each day. Based on its budget, the company can only afford $60,000 in total fines. What is the maximum number of days it can be late?
a.
10 days
c.
12 days
b.
8 days
d.
5 days
OpenStudy (anonymous):
b
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OpenStudy (anonymous):
THANKS!
OpenStudy (anonymous):
welcome
OpenStudy (anonymous):
A culture initially contains 200 bacteria. If the number of bacteria doubles every 2 hours, how many bacteria will be in the culture at the end of 12 hours?
a.
2,600
c.
36,300
b.
12,800
d.
3,400