i need help in math :*(

[Guest]

so i have this stupid math question 12r=1.5 ...and the r is supposed to be a rate.... well i looked up the answer and it says it should be 18% and i cant get tht answer to save my life!!! :*( no matter ehat i do tht stupid little r doesn't add up right >

someone help please

i got R to be 12.5%.....12*.125=1.5

[Nine8SST]

The problem to solve is:

12r=1.5

First, let's work on the left hand side of your equation, the 12r

This means, for instance, to see if it can be simplified at all.

Multiply r and 12

Multiply r and 1

The r just gets copied along.

The answer is r

r

12*r evaluates to 12r

So, all-in-all, the left hand side of your equation can be written as: 12r

--------------------------------------------------------------------------------

Now, let's work on the right hand side of your equation, the 1.5

The right hand side of your equation can be written as: 1.5

--------------------------------------------------------------------------------

So with these (any) simplifications, the equation we'll set out to solve is:

12r = 1.5

To isolate the r, we have to divide both sides of the equation by the other variables

around the r on the left side of the equation.

--------------------------------------------------------------------------------

The last step is to divide both sides of the equation by 12 like this:

To divide r by 1

The r just gets copied along in the numerator.

The answer is r

12r ÷ 12 = r

1.5 ÷ 12 = 0.125

The solution to your equation is:

r = 0.125

[bigaltexas]

yeah i got 12.5 too.

and nooo buddy, thats no where near calculus! seems like just algebra.

i took calculus last year when i was a senior. talk about rocket science!

ha high school calc. i remember that

then i hit engineering calc. shit got real

oh yeah, i mean hardly any one passed it. but it was things like derivatives, limits, functions, infinite series.. integrals.. just stuff like that. im prepared for the college calculus though, engineering is the path ive always wanted to pursue and am taking core classes right now.

[Guest]

The problem to solve is:

12r=1.5

First, let's work on the left hand side of your equation, the 12r

This means, for instance, to see if it can be simplified at all.

Multiply r and 12

Multiply r and 1

The r just gets copied along.

The answer is r

r

12*r evaluates to 12r

So, all-in-all, the left hand side of your equation can be written as: 12r

--------------------------------------------------------------------------------

Now, let's work on the right hand side of your equation, the 1.5

The right hand side of your equation can be written as: 1.5

--------------------------------------------------------------------------------

So with these (any) simplifications, the equation we'll set out to solve is:

12r = 1.5

To isolate the r, we have to divide both sides of the equation by the other variables

around the r on the left side of the equation.

--------------------------------------------------------------------------------

The last step is to divide both sides of the equation by 12 like this:

To divide r by 1

The r just gets copied along in the numerator.

The answer is r

12r ÷ 12 = r

1.5 ÷ 12 = 0.125

The solution to your equation is:

r = 0.125

not to be a dick, but you can just do 1.5 divided by 12 and be done with it.

[Maxim]

The problem to solve is:

12r=1.5

First, let's work on the left hand side of your equation, the 12r

This means, for instance, to see if it can be simplified at all.

Multiply r and 12

Multiply r and 1

The r just gets copied along.

The answer is r

r

12*r evaluates to 12r

So, all-in-all, the left hand side of your equation can be written as: 12r

--------------------------------------------------------------------------------

Now, let's work on the right hand side of your equation, the 1.5

The right hand side of your equation can be written as: 1.5

--------------------------------------------------------------------------------

So with these (any) simplifications, the equation we'll set out to solve is:

12r = 1.5

To isolate the r, we have to divide both sides of the equation by the other variables

around the r on the left side of the equation.

--------------------------------------------------------------------------------

The last step is to divide both sides of the equation by 12 like this:

To divide r by 1

The r just gets copied along in the numerator.

The answer is r

12r ÷ 12 = r

1.5 ÷ 12 = 0.125

The solution to your equation is:

r = 0.125

Jesus Christ. Are you a fucking algebra 1 teacher at your local high school? There's clearly more to this problem than 12r=1.5 if it involves rate. Sounds like something pre-calc calculus based.

Chodette, dear, we need the whole problem to solve it. Type it in or take a picture and upload it. Otherwise you'll keep getting 1/8th as an answer and that'll get us nowhere.

[ChevyBoy95]

She already stated that the answer is 18%. so I'm guessing r=.18 But maybe the key is wrong.

The problem to solve is:

12r=1.5

First, let's work on the left hand side of your equation, the 12r

This means, for instance, to see if it can be simplified at all.

Multiply r and 12

Multiply r and 1

The r just gets copied along.

The answer is r

r

12*r evaluates to 12r

So, all-in-all, the left hand side of your equation can be written as: 12r

--------------------------------------------------------------------------------

Now, let's work on the right hand side of your equation, the 1.5

The right hand side of your equation can be written as: 1.5

--------------------------------------------------------------------------------

So with these (any) simplifications, the equation we'll set out to solve is:

12r = 1.5

To isolate the r, we have to divide both sides of the equation by the other variables

around the r on the left side of the equation.

--------------------------------------------------------------------------------

The last step is to divide both sides of the equation by 12 like this:

To divide r by 1

The r just gets copied along in the numerator.

The answer is r

12r ÷ 12 = r

1.5 ÷ 12 = 0.125

The solution to your equation is:

r = 0.125

[lowpt]

Since 1/8 looks similar to 18%, is it possible it is a typo?

[IH8PunkRok]

Since 1/8 looks similar to 18%, is it possible it is a typo?

god i hope not

thats a bad typo

[Nine8SST]

No, not a teacher.....a Machinist.

Kranny- Knowing how to get to the answer is as important as the answer, especially since the answer was making no sense to her.

Chodette- Typo's happen, thats obviously the case here.

[Chodette69]

no the question reads: loan lenders are required to give the annual percentage rate or APR for every loan, using the formula APR=12r, where r is the monthly interest rate. find r when: r=1.5

so my thought process was:

12r=1.5 (12 being the monthly rate)

so i divided 12 off both sides...well when i checked the answer they said i should get 18%

if i multiply 12x1.5 i get 18..... i just dont understand how the book got tht answer.... and theres nothing explaining it :/