Seems to be a geometric sequence which is found by
an=nth term
a1=first term
r=common ratio
first term is 0.75
it doubles each time so common ratio is 2
to find the nth term, input n and evaluate
example
to find the 20th term
just to find the kth term, input k for n in
Answer:
Step-by-step explanation:
12x+18=75
-18=-18
12x= 57
Divide by 12.
57/12=4.75
Grace can buy 5 books including the reference book
Answer:
(0,1.25), (1,0), (-1,3)
Step-by-step explanation:
Answer:
(a^3-b^3)
Step-by-step explanation:
According to the formula
Part (a)=======
See the attached figure which represents the problem.
So, we can note that there are 3 hours increase from <span>Monday thru Friday
</span>
and 4 hours increase in both of Saturday and Sunday
So, <span>
the increase in total hours opened = 3*5 + 4*2 = 23 hours</span>
<span>======================================================
</span>
<span>
Part (b):</span>
<span>=====
</span>
<span>weekly original payroll $ 385
</span>
Total working of old hours = 9 * 5 + 5 * 2 = 55 hours
so, the hourly payroll = 385/55 = $ 7
<span>Assume the hourly wage will stay the same
</span>
Total working of new hours = 55 + 23 = 78 hours
So, the total weekly pay under the new hours = 78 * 7 = $ 546=====================================================
Part (c):
========
The total pay for old hours = $ 385
The total pay for new hours = $ 546
The increase in the total pay = 546 - 385 = $ 161
<span>
The percentage increase in total pay = 
</span>
