3 years ago

What led to the decline of fur trading?

1 answer:

7 0

If I remember correctly, one of the reasons was that the beaver population, where the highly sought for fur was gotten from, decreased dramatically as they were hunted down.

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A librarian has 274 return books. 50 of the books are reserved at her desk, and the remaining books need to be shelved. Each she

777dan777 [17]

Answer:16 ........................

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3 years ago

It requires 15 gallons of mulch to cover 5 flowerbeds.How many gallons are needed to cover 7 flowerbeds?

kolbaska11 [484]

You need to work out how much you need for 1 flowerbed,
So, 15÷5= 3. 3 gallons =1 flowerbed
Then, 3 X 7 = 21 Gallons.

4 0

3 years ago

Read 2 more answers

How many sets of four consecutive positive integers are there such that the product of the four integers is less than $100,\!000

SVEN [57.7K]

Answer:

16,17,18,19

Step-by-step explanation:

one guy guessed. probably using a calculator

another guy took the 4th root of 100,000 and rounded down a number

(a third way started like this

n*(n+1)*(n+2)(n+3)=100000

4 0

2 years ago

Write the following polynomial in standard form: 4x+3-4x2-10x3

Ne4ueva [31]

Answer:

− 10 x ^3 − 4 x ^2 + 4 x + 3

Step-by-step explanation:

5 0

3 years ago

A pond has 150 fish and the population decreases by 8% each day. How many days before there are 30 fish

nlexa [21]

Answer:

19 days

Step-by-step explanation:

Given

$a = 150$ --- initial

$r = 8\%$ -- rate

Required

Days when the fish gets to 30

The function is exponential and as such it follows;

$y = ab^x$

Where x represents the number of days and y the number of fishes

Because the fishes decreases;

$b = 1 - r$

So, we have:

$b = 1 - 8\%$

Express as decimal

$b = 1 - 0.08$

$b = 0.92$

In $y = ab^x$

$a =150$

$y = 30$

$b = 0.92$

So, we have:

$30 = 150 * 0.92^x$

Divide both sides by 150

$0.2 = 0.92^x$

Take log of both sides

$log(0.2) = log(0.92^x)$

Apply law of logarithm

$log(0.2) = x\ log(0.92)$

Make x the subject

$x = \frac{log(0.2)}{log(0.92)}$

$x = \frac{-0.6990}{-0.0362}$

$x = 19.309$

$x \approx 19$

Hence, it takes approximately 19 days

3 0

3 years ago