varies jointly with numbers of candy bars purchased and the prices per candy bar . if the tax on 8 candy bars are at 65 cents and each is 26 cents , then what is the sales tax on 6 candy bars at 90 cents each

Question

owlfred · Answer

Hoot! You just asked your first question! Hang tight while I find people to answer it for you. You can thank people who give you good answers by clicking the 'Good Answer' button on the right!

amistre64 · Answer

your question is a bit truncated

amistre64 · Answer

y = ktp

amistre64 · Answer

t = knp maybe?

amistre64 · Answer

65 = k8.26

k = 65/8.26

anonymous · Answer

the equation is a over b(c) but idnt knw how to solve it

anonymous · Answer

thats not one of my answer choices

amistre64 · Answer

k = 0.3125

anonymous · Answer

nope thats not on my answer choices

amistre64 · Answer

t = .3125.6.90 then

amistre64 · Answer

168.75 ??  lol  thats alot of tax

amistre64 · Answer

filling in the missing part of the question might be helpful

anonymous · Answer

ok buht how do i solve

amistre64 · Answer

generally by finding the constant of variation; which is usually denoted as k

amistre64 · Answer

to vary jointly is to be y = mn ; y varies jointly as m and n

anonymous · Answer

first i cross multiply

amistre64 · Answer

can you type the question again so I can get all the information?

anonymous · Answer

the waht do i do with the 8 times .90(x)

anonymous · Answer

varies jointly with numbers of candy bars purchased and the prices per candy bar . if the tax on 8 candy bars are at 65 cents and each is 26 cents , then what is the sales tax on 6 candy bars at 90 cents each

anonymous · Answer

thanks soo much for helping me

amistre64 · Answer

'varies jointly...' is not the beginning of the question ......

anonymous · Answer

no thats the direction . then the problem

amistre64 · Answer

its like trying to answer: ....and goes in that direction; which direction is he heading?

amistre64 · Answer

'varies with' is the middle of the question; or at least not the start of it

amistre64 · Answer

there is more to the problem than you have given

anonymous · Answer

the start

amistre64 · Answer

so what varies jointly?

anonymous · Answer

, look it upp on google , im not sure how to explain

amistre64 · Answer

?? varies jointly with numbers of candy bars purchased
        and the prices per candy bar . 

if the 'tax' on: t=65cents; n=8 candy bars;each p=26 cents

t = knp;

.65 = k8*.26

k = .65/(8*.26)  is all I can make of it

amistre64 · Answer

which means k = 0.3125

amistre64 · Answer

t = .3125 np

anonymous · Answer

my answers are 
.25
.26
.27
.28

amistre64 · Answer

the sales tax(t) on (n)6 candy bars at (p)90 cents each

t = .3125(6)(.9) = 1.8675

so there has to be something else to the question; because that is all I can make of it as is...

amistre64 · Answer

it has to vary inversely with something; to reduce it; but that is not stated...

amistre64 · Answer

is it 65 cents tax for each candy bar?  or is it 65 paid for all 8?