All categories

2 years ago

Please help me.......

Mathematics

1 answer:

Vesna [10]2 years ago

8 0

Answer:

Step-by-step explanation:

I hope this helps

You might be interested in

Express sum as product 18+27

geniusboy [140]

18+27
=9(2+3)
=9*5 Answer

5 0

3 years ago

Read 2 more answers

Geometry pls help thanks

sveta [45]

Answer:

x=30

Step-by-step explanation:

it is an equilateral triangle, so all angles are the same. each angle is 60 degrees. 60/2 is 30, so 30 degrees is the answer.

5 0

2 years ago

2 numbers are such that if 7 is added to the first number, a number twice the second number is obtained. If 20 is added to the s

Eduardwww [97]

Answer:

1st= 47/7 or 6.71

2nd= 48/7 or 6.857

Step-by-step explanation:

1st number =X and 2nd number = Y

According to question, X+7=2Y

20+Y=4X

X=2Y-7 (from 1st condition)

putting in it second

20+Y=4(2Y-7)

20+Y=8Y-28

20+28=8Y-Y

48=7Y

Y=48/7

so X=2(48/7)-7

=96-49/7

47/7

5 0

3 years ago

Adam found a bag of money that he split with 22 friends.

olasank [31]

Answer:

x/23

Step-by-step explanation:

The bag of money can be represented by x

Adam is 1 person.

1 + 22 = 23

x is divided by 23

x/23

~ Zoe

6 0

2 years ago

The population of a community is known to increase at a rate proportional to the number of people present at time t. If the popu

Lady bird [3.3K]

Answer:

$P(t) = P(0)e^{0.0693t}$

Step-by-step explanation:

The population of a community is known to increase at a rate proportional to the number of people present at time t.

This means that the population growth is modeled by the following differential equation:

$\frac{dP(t)}{dt} = rP(t)$

Which has the following solution:

$P(t) = P(0)e^{rt}$

In which P(t) is the population after t years, P(0) is the initial population and r is the growth rate.

The population has doubled in 10 years

This means that $P(10) = 2P(0)$ . We use this to find r.

$P(t) = P(0)e^{rt}$

$2P(0) = P(0)e^{10r}$

$e^{10r} = 2$

$\ln{e^{10r}} = \ln{2}$

$10r = \ln{2}$

$r = \frac{\ln{2}}{10}$

$r = 0.0693$

So the equation that will estimate the population of the community in t years is:

$P(t) = P(0)e^{0.0693t}$

6 0

3 years ago

Please help me.......​

Please help me.......