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Ilya [14]
2 years ago
7

What is the solution to this equation x/5= -20 A. x=4 B. x=100 C. x=-4 D. x=-100

Mathematics
1 answer:
stepladder [879]2 years ago
4 0

Answer:

D. X= -100

Step-by-step explanation:

5×x/5=5×(-20) (reduce and multiply)

X= -100

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Andreas93 [3]

Answer:

FV(p)= PV*(1 + g)^t

Step-by-step explanation:

Giving the following information:

Number of insects (PV)= 1,500

Increase rate= 3 weekly

<u>First, we need to calculate the daily growth rate:</u>

Daily rate (g)= [3^(1/7)] - 1

Daily rate (g)= 0.16993

<u>Now, by using the following formula, we can determine the population p in any given day t:</u>

FV(p)= PV*(1 + g)^t

<u>For, example after 7 days:</u>

FV(p)= 1,500*(1.16993^7)

FV(p)= 4,500

<u>For example, after 10 days:</u>

FV(p)= 1,500*(1.16993^10)

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2 years ago
What is six less than seven times a number is equal to -20​
Naya [18.7K]

Answer:

7n-6=-20

Step-by-step explanation:

six less than seven times a number

we'll use n as "the number"

six less meaning -6

7 times a number n = 7n

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7 0
2 years ago
Jacob copies 30% of a document. He copies 8 pages. Write the number of pages in the<br>document.​
lana66690 [7]

Answer:

27

Step-by-step explanation:

<h2><u>Number of documents</u></h2>

jacob copies 30% of a document which is 8 pages

we can solve this using cross multiplication

30 %       :        8

100%      :         x

30%x = 100%*8

30% x = 8

x = 8/ 30%

x = 26.667

to 2sf

<h3><u>number of pages in the documents 27 </u></h3>

<u />

5 0
3 years ago
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The median is the number in the middle of the data set.

There are 7 numbers, so the 4th number is the median.

(Another method is to eliminate a number on each side until you get to the middle number)

<h2>Answer:</h2>

<u>The median is </u><u>16</u><u>.</u>

I hope this helps :)

7 0
2 years ago
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Describe the Reagan doctrine concerning the fight against communism then provide two examples of how the doctrine looked in acti
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Answer:

It was President Reagan’s support for anti-communist revolutions. It was used as an attempt to end the Cold War (geopolitical tension after world war ll)

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