All Answers 358585 Answers

(1+9) + (3+7) + (5+15) + (7+13) + (11+19)

10 + 10 + 20 + 20 + 30  = 90

I think you mean a " conserved number" or more accurately known as a " conserved quantity", such as "mass", "energy" "momentum"......etc. There is also a "conserved numbers" in physics, such as the spin af an electron, prtoton, neutron.....etc. This means that these numbers and quantities are "fixed". You cannot increase them or decrease them or change them. They are "fixed" by mother nature.

Consecutive numbers are numbers that come one after the other.  like 3,4,5

Answers 1 and 2 demonstrate different cell phone plans !    Some plans do not allow you to carry over minutes from month to month...if you do not use them you lose them.     Other plans allow you to just pay for your minutes in 200 minute alloquates (like the second example).    

y = 2^x

log y  = x log2

log y / log 2   = x

log x / log 2  = y  = f^-1(x)

Here you are.........https://www.desmos.com/calculator/cijt90zdqo

-7c + 2 = 16    Add 7c to both sides

2 = 16 + 7c     Subtract  16 from both sides

-14 = 7c          Divide both sides by 7

-2 = c

I do not know......Consecutive number perhaps?

Sometimes, when people say ' A conservative number would be...'      they mean that the number is a close estimate without over- or under-estimating too much

Gloria talked on her cell phone for 320 minutes the first month, 243 minutes the second month, and 489 minutes the third month. Her payment package does not allow her to pay per minute; she can only buy packages. If she has to pay $25 for every 200 minutes,how much did she pay for the first three months? PLEASE EXPLAIN

320+243+489=1,052 total minutes that she talked for the 3 months.

1,052/200=5.26, but since she must buy a full package, which means she must have purchased 6 FULL packages, or 6 X 200=1,200 minutes. Since each package costs $25, then she must have paid $25 X 6=$150.00 for that 3-month period.

Are you talking about primary school type division using whole numbers?

I bet there are a lot of games on the net to help with that, if that is what you mean?

Do you know your tables properly because division is just the opposite of multiply. :/

Provide us with an example of what is troubling you.....

Lots of mental practice...it will come naturally to you after a while !  

If you have a quadratic equation with a leading coefficient that is equated to '0'    ...then just divide through by that coefficient !  

Example:   3x^2 - 9x + 6 = 0

Divide through by '3' to get    x^2 - 3x + 2 = 0   

Another way :

[ 12 + 7 - 2 ] * 3   =

[ 19 - 2 ] * 3   =

17 * 3   =

51

your so ugly the answer is 89089 uglyness of you

First month she has to buy TWO packages to cover 320 minutes

Second month                     TWO                              243

Third month                          THREE                          489

TWO + TWO + THREE = SEVEN package  @ 25 ea   = 175            

use the calculator !        Press '7'   then the sqrt x  symbol key the '='

Those are the perfect squares

12^2 = 144

13^2 = 169

etc.....

Add 195 to both sides of the equation

   then add 14x to both sides of the equation

     then divide both sides of the equation by 17

x^2-6x+5/x^2+4x-5

PLEASE PUT BRACKETS IN!

t^2-u^2/t+u 

Is this what you mean? 

\((t^2-u^2)/(t+u) \)

You need to put the brackets in or else you are asking a different question.

A person deposits $5000 into an investment account at the end of each year for 10 years. The account earns 4% interest annually. What is the future value of the annunity after the 10th deposit.

Using Geometric Sequence to solve!

FV=P[(1 + r)^n - 1] / r=5000[(1.04)^10 -1] / .04=$60,030.54

who u talking about im know you not talking about me becuase im a girl boo boo and i know how to spell

Huh

12^2

13^2

14^2

15^2

Guess they should have asked if there were any girls that can spell and use proper English !   Yikes.