A charm bracelet costs $65, plus $25 for each charm. The equation −25x+y=65 represents the cost y of the bracelet, where x is the number of charms. How much does the bracelet cost?

To find the solution first you have to isolate y (the cost of the bracelet) in the equation:

\begin{gathered}-25x+y=65\\y=65+25x\end{gathered}−25x+y=65y=65+25x

Then, you substitute the given value of x (number of charms) into the equation:

y=65+25(13)y=65+25(13)

And you solve:

\begin{gathered}y=65+325\\y=390\\\end{gathered}y=65+325y=390

Therefore, the bracelet costs $390

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$20.01

step-by-step explanation:

the sale price is (1.00 - 0.77)($87), or 0.23($87), or $20.01.

distance covered by pamela in 9 l of fuel = 99km

let us apply unitary method here.

distance covered by pamela in 1 l of fuel =99/9 =11 km

now let us find distance covered by pamela if she has 12 l of fuel.

distance covered in 12 l = distance covered in 1 l of fuel * 12

we know that distance covered by here in 1 l is 11 km.

so distance covered in 12 l of fuel = 11*12 = 132 km.