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igomit [66]
3 years ago
8

Nancy lives in a state where sales tax is 9%. This means you can find the total cost of an item, including tax, by using the exp

ression c + 0.09c, where c is the pre-tax price of the item.
Use the expression to find the total cost of an item that has a pre-tax price of $84.00.
Mathematics
2 answers:
Dmitry_Shevchenko [17]3 years ago
7 0
Answer is $91.56
c + 0.09c
84 + 0.09(84) 0.09x84= 7.56
84 + 7.56 = $91.56
uysha [10]3 years ago
3 0

Answer:

91.56

Step-by-step explanation:

84 x 0.09=7.56

7.56+84=91.56

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A city's population is represented by the function P=25,000(1.0095)t , where t is time in years.
JulsSmile [24]
A growth function has the following form.

P=P_0(1+ \frac{r}{n} )^{nt}

where P_0 = Original amount,
r = annual rate of change,
n = number of periods,
t = time in years

Since the time is in years, we need to convert t into days. We know that 1 year = 365 days. So t years = 365t days. 

So in this case, n = 365, r = 0.0095.

Then the function is rewritten as follows.

P=25,000(1+ \frac{0.0095}{365})^{365t}

The daily growth rate would be \frac{0.0095}{365}= 0.00003 = 0.003%

3 0
3 years ago
Read 2 more answers
Which is a Linear Equation?<br> A. Y=3-2x<br> B. Y= -7x^2<br> C. Y=2-3x^2<br> D. Y=-7×^3
scoray [572]

Answer:

C

Step-by-step explanation:

I've done this and I got it right

8 0
4 years ago
Read 2 more answers
Zofia spent 4 1/3h weeding her garden on Monday and 1 4/5h on Tuesday. How many hours did she spend weeding her garden altogethe
PSYCHO15rus [73]
4 1/3+ 1 4/5

1. Convert to numbers with the same denominator

4 1/3= 4 5/15

1 4/5= 1 12/15

2. Add the values

4 5/15+ 1 12/15= 5 17/15= 6 2/15

Zofia spent 6 2/15 hours weeding her garden in total.

Hope this helps!
5 0
3 years ago
I have to solve 3x^2+5x=2 but Im having some confusion.
stellarik [79]
It´s <span> x = 2 
I´m positive that is right </span>
5 0
3 years ago
18 points were scored by one figure skating pair and that was 40% of their final score. What was the final score for that pair o
Phoenix [80]
18 points scored for a pair was 40 % of the final score
then final score is 100%
therefore if 40 % accounts for 18 points 
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                            = 45 points is the final score 
if we back calculate = 18 /45 *100 = 40%
Therefore the final score is 45 points
7 0
4 years ago
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