I wrote 5 different numbers on five cards. The sum of the numbers is 15. What numbers did I put on the cards?

Answers

Answer 1

Answer: If they all have to be positive whole numbers, then the only
way you could do it is 1, 2, 3, 4, and 5 .
(They could be in any order.)

If they don't all have to be positive, or they don't all have to be
whole numbers, then there are an infinite number of ways to do it.

2 , 4 , 6 , 8 , and negative 5

0.2 , 0.8 , 1.0 , 1.4 , and 1.6

etc.

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Solve for x.4 + 2x = 10

Can you tell me what 6+3.9 is

Answers

Answer:

9.9

Step-by-step explanation:

6 + 3.9 = 9.9

you add the two whole numbers together and get 9

then you need to add whatever is behind the decimal point which is 9

add them together and you get 9.9

If the population of a country increases at a rate of 1.5% annually, and its current population is 430,000, how many years will it take for the population to triple?

Answers

Answer:

Hence, it will take about 73 years for the population to triple.

Step-by-step explanation:

For this case we have an exponential function P(t) which represents the population at time 't' ; which is given as:

i.e. the equation is represented of the form:

$P(t)=Ab^t$

Where,

A: initial amount ( Here we have A=430000)

b: growth rate (Here we have b=1.015)

t: time in years.

As the population has to triple over the time.

Hence, Substituting values we have:

$3* 430000=430000* (1.015)^t$

⇒ $3=(1.015)^t$

Taking logarithmic function on both side we have:

$\log3=t\log1.015$

( Since $\log m^n=n \log m$ )

⇒ $t=(\log 3)/(\log 1.015)\n\nt=73.78876233$

Hence, It will take for the population to triple about:

t = 73 years

3p=p(1+0.015)^n
3=(1.015)^n
n=Log(3)/log(1.015)
n=??

Please answer correctly and quickly all question please please please

Answers

5. Part A- X is less than 54
Part B- x is greater than or equal to 13
9. 0 is the answer
10. J=5 and draw a line going right from the number 2 with a filled in circle

What is the solution set of –|x| = –8?

Answers

Answer:

x=-8, 8

Step-by-step explanation:

–|x| = –8

$-|x| = -8$

To solve this absolute value inequality we remove the negative sign on the left hand side

Divide both sides by $-1$

$|x| =8$

If $|x|=a$ then $x=a \ and \ x=-a$

$|x| =8$

$x=8 \ and \ x=-8$

-|x|=-8 X=-(-8) X=8 I hope that is good!

-2x-6=10
Solve it because I don’t get it

Answers

Answer:

X = -8

Step-by-step explanation:

Find th equation of the line below.If necessary, use a slash to indicate a division bar..(2,14) (1,7)

Answers

$(2,14), \ \ (1,7)\n\n\n First \ find \ the \ slope \ of \ the \ line \ thru \ the \ points \: \n \n m= (y_(2)-y_(1))/(x_(2)-x_(1) ) \n \nm=( 7-14)/(1-2) = ( -7)/(-1)=7 \n \n Use \ point \ form \ of \ a \ line\ with \ one \ point: \n \n y-y_(1) =m(x-x _(1)) \n \nm=7, \ \ x_(1)=2, \ \ y_(1)=14\n\ny-14 =7(x-2)\n\ny = 7 x-14+14 \n\n y=7x$

General equation for line:
y=ax+b
Putting those points to equation:
(2,14)
14=a*2+b
(1,7)
7=a+b
From substituting method:
a=7-b
14=(7-b)*2+b
14=14-2b+b
b=0
a=7
y=7x - result

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