Answer:
k = -1/240
Step-by-step explanation:
to evaluate the value of k in the expression 1/3k+80=1/2k+120
we have
1/3k+80=1/2k+120
collect the like terms for easy evaluation
1/3k - 1/2k = 120 -80
1/3k - 1/2k = 40
find the lcm
2 - 3/6k = 40
-1/ 6k = 40
cross multiply
6k x 40 = -1
240k = -1
divide both sides by 240
240k/240 = -1/ 240
k = -1/240
therefore the value of k in the expression 1/3k+80=1/2k+120 is equals to -1/240
Answer:
i think its The sale price of the jeans is 50% of the original price.
Step-by-step explanation:
A + 5 =
![\frac{1}{5}](https://tex.z-dn.net/?f=%20%5Cfrac%7B1%7D%7B5%7D%20)
(5a + 25)
First, simplify
![\frac{1}{5} (5a + 25)](https://tex.z-dn.net/?f=%20%5Cfrac%7B1%7D%7B5%7D%20%285a%20%2B%2025%29)
to
![\frac{5a+25}{5}](https://tex.z-dn.net/?f=%20%5Cfrac%7B5a%2B25%7D%7B5%7D%20)
/ Your problem should look like:
Second, multiply both sides by 5. / Your problem should look like:
Third, expand to get rid of parenthesis. / Your problem should look like:
Fourth, both sides are equal, resulting it having infinite solutions.
Answer:
infinite solutions
The constant of proportionality is 600