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Shalnov [3]
3 years ago
7

The water level of a lake fell by 1 and one half in. during a 1 and two thirds ​-week-long dry spell. Simplify the complex fract

ion below to find the average rate at which the water level changed every week. StartFraction negative 1 and one half Over 1 and two thirds EndFraction
Mathematics
1 answer:
torisob [31]3 years ago
5 0

Answer:

-9/10

Step-by-step explanation:

 

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Which ordered pair is a solution of the equation? 6x+3y=15
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Feliz [49]

Answer:

a. Relative Growth rate = 10% (6/60 * 100)

b. Number of cells after t hours = 50 * 1.1^t

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d. The number of cells after 6 hours is

= 89 cells

Step-by-step explanation:

A cell divides into two cells every 20 minutes

In one hour, the cell will divide into 60/20 * 2 = 6 cells

Each cell growth 6 cells per hour

Initial population of a culture = 50 cells

t = time in hours

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b. Number of cells after t hours = 50 * 1.1^t

c. Rate of growth after 6 hours = 77.2% (1.1⁶ - 1)

d. The number of cells after 6 hours = initial population * growth factor

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3 years ago
September 6 is a Read Book Day.Polina read 5 times as many pages as Marcus read.Together,the read 108 pages.How many pages did e
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Answer:

The number of pages that Polina read was 90 and the number of pages that Marcus read was 18

Step-by-step explanation:

Let

x -----> number of pages that Polina read

y ----> number of pages that Marcus read

we know that

x+y=108 ----> equation A

x=5y -----> equation B

substitute equation B in equation A and solve for y

5y+y=108\\6y=108\\y=18

Find the value of x

x=5y -----> x=5(18)=90

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The figure is made up of a cone and a cylinder
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