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Sati [7]
3 years ago
7

Researchers at the Centers for Disease Control and Prevention have been studying the decay pattern of a new virus with a decay r

ate of 19% per hour. They start with 300 viruses that they want to check on in the next 7 hours. How many viruses will they find in 7 hours? Round your answer to the nearest whole number
Mathematics
1 answer:
klemol [59]3 years ago
5 0

Answer:

After 7 hours will be 1.95489493x10^12 viruses

Step-by-step explanation:

If the virus spread with 19% per hour after one hour it will increase 57 and continue in the 300+((300*0.19)^7) form, we just need to caculate the form

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David uses 1/2 cup of apple juice for every 1/4 cup of cranberry juice to make a fruit drink. Find out the number of cups of app
statuscvo [17]
Well, he would use 4/4 cup of cranberry juice to equal 1 cup. that is 4x the original amount. so, multiply 1/2 × 4 to equal 2 cups. David would use 2 cups of apple juice for every 1 cup of cranberry juice.
5 0
3 years ago
What is the solution to the equation 2/3a-1/6=1/3
Vsevolod [243]

Answer:

a = \frac{3}{4}

Step-by-step explanation:

\frac{2a}{3} -\frac{1}{6} =\frac{1}{3}

\frac{4a}{6}-\frac{1}{6}  =\frac{2}{6}

(now you can multiply the whole equation by 6 to remove the fractions

4a - 1 = 2

4a = 2+1

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a = \frac{3}{4}

4 0
3 years ago
write an equation: Great Uncle Wilbert splits his inheritance equally between his five nieces and nephews. Unfortunately each of
Vaselesa [24]
I think it would be 1225000 because:

$7,500 each to the govt each comes out to $37,500 total given 
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so adding both totals, you get $1,225,000 total money in Great Uncle Wilbert's inheritance

apparently he was rich xD

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6 0
3 years ago
The weight of an object on the moon is 1/6 its weight on earth. write 1/6 as a decimal
denpristay [2]
Point six repeatedly so 0.16666666666... so just put a bar over the six 
7 0
4 years ago
Read 2 more answers
Which expression below gives the average rate of change of the function g(x)=-x^2-4x on the interval 6
Lapatulllka [165]

Answer:

The complete question is:

Which expression below gives the average rate of change of the function g(x)= -x^2 - 4x on the interval 6 < x < 8

When we have a function f(x), the average rate of change of this function in the interval a < x < b is given by:

r = \frac{f(b) - f(a)}{b - a}

Then if we have the function g(x) = -x^2 - 4x

and we want to find the average rate of change in the interval 6 < x < 8 we need to compute:

r = \frac{g(8) - g(6)}{8 - 6} = \frac{(-(8^2) - 4*8) - (-(6)^2 - 4*6)}{2} = \frac{-96 - (-60)}{2}  = \frac{-36}{2} = -18

6 0
3 years ago
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