Please help with this mathematical question!best answer goes to person right!?

Question

ok...by the way if any of the ones that get this right answer any of my other questions ill give u best answer for just getting these right:]....

5/2k = 5

-4/5p = 2/3

2/3 = -1/3q

-5/8 = -3/4a

Answer 1

(5/2)k=5

first you get rid of 5/2.. by inverse. WHAT YOU DO TO ONE SIDE YOU HAVE TO DO TO THE OTHER*

so

2/5 * 5/2K=5 * 2/5

k=10/5

k=2

-4/5p=2/3

so multiply by the inverse like the first one...

-5/4 * -4/5 ; = 2/3 * -5/4

p = -10/12 which reduces to -5/6

getting the hang of it? =]

so this one just has the variable on the other side, but you can just change aka flip it

so

-1/3q=2/3

mult. by inverse

-3/1 equals negative three.

so -3* -1/3 q = 2/3 * -3

the threes cancel out so its

negative two.

2/3*-3/1

-2/1 is -2

q=-2

-3/4a=-5/8

-4/3 * -3/4a=-5/8* -4/3

a= -20/24

-5/6=a

i mentally checked them but make sure you check them and do them yourself b/c i may have made a mistake. i dont think i did though.

good luck i hope i explained it well!!! and i'll email you if you dont understand jsut write your email!

its really easy once you figure it out!

Answer 2

5/2k = 5

k = 5 ÷ 5/2

k = 5 * 2/5

k = 10/5

k = 2

¯¯¯¯¯¯¯

-4/5p = 2/3

p = 2/3 ÷ (-4/5)

p = 2/3 * -(5/4)

p = -10/12

p = -5/6

¯¯¯¯¯¯¯

2/3 = -1/3q

-1/3q = 2/3

q = 2/3 ÷ -1/3

q = 2/3 * -3

q = -6/3

q = -2

¯¯¯¯¯¯¯

-5/8 = -3/4a

-3/4a = -5/8

a = -5/8 ÷ -3/4

a = -5/8 * -4/3

a = 20/24

a = 5/6

¯¯¯¯¯¯¯

Answer 3

5/2k = 5

5/2 is equivalent to 2.5

so... 2.5k=5

k=2

check it by putting two in to the equation.

5/2(2)=5

-4/5p = 2/3

i would make the denominators the same first.

so... the least common denominator is 15.

5x3=15

-4x3=-12

3x5=15

2x5=10

now your equation is...

-12/15p=10/15

you know that p must equal a - to make the result a pos num.

you can figure 12/15->10/15.....10/12->5/6

the answer must be neg so -5/6 is the answer.

2/3 = -1/3q

this one is fairly simple, you must get the -1 to a pos 2.

the only way to do this would be to multiply it by a neg 2.

so the answer is...

-2

-5/8 = -3/4a

change the denomenator to 8.

-5/8=-6/8a

take the numerator from each and your answer is -5/6.

You can plug it in to check.

Good Luck!

About that best answer thing, the offer still exhists, right???

Just kidding, hope that helped to clear things up a bit!

Answer 4

Here is what I interpret these to be - I supply parenthesis to remove any ambiguity.

(5)/(2k) = 5

Multiply both sides by (1/5)k to get

k=1/2

(-4)/(5p)=2/3

Multiply both sides by (3/2)p to get

-(4/5)*(3/2)=p=(-6/5)

2/3=(-1)/(3q)

Multiply both sides by (3/2)q to get

q=(-1/2)

-5/8 = (-3)/(4a)

Multiply both sides by (-8/5)a

to get

a=(-3/4)*(-8/5)=24/20=6/5

Answer 5

Please don't do these to get the best answer.

We are trying to be helpful.

Answer 6

K = 2

p = -5/6

q = -2

a = 5/6