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4 years ago

The population of a town doubled in 5 years, then doubled again in the next 10 years. What is the percent increase

1 answer:

7 0

That increases the population of the torn by a factor of 4, which takes it from 100% to 400% of its initial population, which means an increase of 300%.

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Ultiple Choice

gulaghasi [49]

Answer:

4 12

3 18

5 20

7 42

5 15

Step-by-step explanation:

all of the above form a proportion

8 0

3 years ago

Find the quotient of 21x^2y^6+6xy^3-30xy/3xy.

kaheart [24]

$\bf ~~~~~~~~~~~~\textit{negative exponents}
\\\\
a^{-n} \implies \cfrac{1}{a^n}
\qquad \qquad
\cfrac{1}{a^n}\implies a^{-n}
\qquad \qquad 
a^n\implies \cfrac{1}{a^{-n}}
\\\\
-------------------------------$

$\bf \cfrac{21x^2y^6+6xy^3-30xy}{3xy}\implies \stackrel{\textit{distributing the denominator}}{\cfrac{21x^2y^6}{3xy}+\cfrac{6xy^3}{3xy}-\cfrac{30xy}{3xy}}
\\\\\\
\cfrac{21}{3}\cdot x^2x^{-1}y^6y^{-1}+\cfrac{6}{3}\cdot x^1x^{-1}y^3y^{-1}-\cfrac{30}{3}\cdot x^1x^{-1}y^1y^{-1}
\\\\\\
7x^{2-1}y^{6-1}+2x^{1-1}y^{3-1}-10x^{1-1}y^{1-1}\implies 7xy^5+2y^2-10$

3 0

3 years ago

Read 2 more answers

Mark deposits $12000 into an account that pays 4% interest, compounded annually, for 5 years. Saul deposits $10000 into an accou

Zepler [3.9K]

Answer:

mark=$2400 &Saul=$4800

Step-by-step explanation:

For mark:

p=$12000

r=4%

t=5 years

I=prt/100

12000*4*5/100= 2400

For Saul:

p=$10000

r=6%

t=8 years

SI=prt/100

10000*6*8/100= 4800

4 0

3 years ago

Please help asap show work and dont put links

matrenka [14]

Answer:

a. 41

b. -31

c. 25/3, no

Step-by-step explanation:

when it says find f(14) the number inside the parenthesis is x, so you just plug that number into the equation which in this case is 3x-1. for c it says find the input if the output is 24. so basically the output is f(x) or y and the input is x. so 3x-1 = 24.

5 0

3 years ago

The length of the rectangular field is 18cm, and the width is 24cm,

natali 33 [55]

Step-by-step explanation:

Just do this

2(L+B)

2(18+24)

2×42

84 Ans.

6 0

3 years ago

Read 2 more answers