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jeyben [28]
3 years ago
7

0.77777 as a fraction

Mathematics
1 answer:
Kazeer [188]3 years ago
6 0
0.77777 = 0.77777/1 = 7.7777/10 = 77.777/100 = 777.77/1000 = 7777.7/10000 =
77777/100000
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During the first decade of the century, the population of a certain city was 145,380 in 2000 and 219,135 in 2010. Find the expon
Likurg_2 [28]

Answer:

The exponential growth function is P=145380e^{0.04103t}

Step-by-step explanation:

Given: The population of a certain city was 145,380 in 2000 and 219,135 in 2010.

To find: exponential growth function that models the growth of the city

Solution:

The exponential growth function is given by P=P_0 e^{kt}

Here, P denotes total population after time t

P_0 denotes initial population

k denotes rate of growth

t denotes time

As P(0)=145,380,

145380=P_0e^{0}\\145380=P_0\\P=145380e^{kt}

As P(10)=219135

219135=145380e^{10k}\\e^{10k}=\frac{219135}{145380}\\=1.507326\\k=\frac{1}{10}\ln (1.507326)\\=0.04103\\\Rightarrow P=145380e^{0.04103t}

8 0
3 years ago
Abby's appliances sells DVD players at 7% above the wholesale cost of $89. How much does the store charge for DVD player?
Eva8 [605]
89 multiplied by .07 is 6.23 so add 6.23 to 89 aka
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3 0
3 years ago
What percent of 863.6 is 380
Aleks04 [339]
Hello there! To solve types of questions like these, we can write and solve a proportion. We are looking for the percentage of 380 out of 863.6. Let's set up the proportion like this: 380/863.6 = x/100. Cross multiply the values in order to get 38,000 = 863.6x. Now, divide each side by 863.6 to isolate the "x". 38,000/863.6 is 44.00185271 or 44 when rounded to the nearest whole number. 380 is appox. 44% of 863.6.
4 0
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kvasek [131]
1/40,000 = h/10
40,000h = 10
h = 10/40,000
h = 1/4,000
5 0
3 years ago
What is the equation of a line that passes through the points (3,3) and (-3,7)
just olya [345]

Answer:

slope intercept form is y=-2/3x+5

6 0
3 years ago
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