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3 years ago

Using n for the number of jerseys ordered and c for the total cost in dollars,

Mathematics

2 answers:

mr Goodwill [35]3 years ago

4 0

Answer:

98$

Step-by-step explanation:

Natasha_Volkova [10]3 years ago

3 0

985 dólares es el resultado

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A meter stick perpendicular to the ground casts a 1.5 meter shadow at the same time a telephone pole casts a shadow that is 9 me

snow_lady [41]

The height of the telephone pole = 9 / 1.5 = 6 meters

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3 years ago

Help please do at 11

Bumek [7]

Answer:

Step-by-step explanation:

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2 years ago

Five times a number increased by 8 is seven less than 6 times the number. Find the number.

maksim [4K]

Answer:

15 = x

Step-by-step explanation:

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3 years ago

Use the number line to find the measure

Tema [17]

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2 years ago

The mass of a bacteria culture doubles every four days. If the initial sample is 5mg: a) how much will you have after one week (

maks197457 [2]

Answer:

a) 16.82 mg

b) 24 days

Step-by-step explanation:

Formula for exponential growth is given as:

$A=A_0b^{\frac{t}{c}}$

Where A is the final population

$A_0$ is the initial population

b is the growth factor

c is the time taken for the growth 'b'

t is the amount of time

Here, We are given the following:

$A_0$ = 5 mg

b = 2 (Given because it doubles)

c = 4 days

a) A = ?

Using the formula:

$A=5 \times 2^{\frac{7}{4}}\\\Rightarrow A=5 \times 2^{1.75} \\\Rightarrow A = \bold{16.82\ mg}$

b) Given

A = 320 mg

t = ?

Using the above formula again:

$320 = 5 \times 2^{\frac{t}{4}}\\\Rightarrow \dfrac{320} 5= 2^{\frac{t}{4}}\\\Rightarrow 2^{\frac{t}{4}} = 64\\\Rightarrow 2^{\frac{t}{4}} = 2^6\\\Rightarrow \dfrac{t}{4} = 6\\\Rightarrow t = 6 \times 4\\\Rightarrow \bold{t = 24\ days}$

So, the answers are:

a) 16.82 mg

b) 24 days

6 0

3 years ago