Question

http://prntscr.com/90qeze

Answer 1

so we know that \(5b+1s+(7b+2s)=$51.69\)
and we also know that \(b=$3.69\)

\(5b+1s+(7b+2s)=$51.69\\12b+3s=$51.69\\12(3.69)+3s=51.69\\44.28+3s=51.69\\3s=7.41\\$2.47\)

Answer 2

so that's the final answer?

Answer 3

s=2.47, yeah

Answer 4

ok, and any idea about the second problem?

Answer 5

\(E=\color{red}{m}c^2\)
we want to get m alone on one side, how do we do that? we hvae to get ride of what's attached to m by doing opposite operations

here, the \(c^2\) is attached to m via multiplication. \(E=\color{red}{m}*c^2\)

we divide both sides by \(c^2\) and we get \(E=\color{red}{m}c^2\\
\dfrac{E}{c^2}=\dfrac{\color{red}{m}c^2}{c^2}
\\\dfrac{E}{c^2}=\dfrac{{m}\cancel{c^2}}{\cancel{c^2}}
\\\dfrac{E}{c^2}=\color{red}{m}\)

Answer 6

ok ty i have two more questions..think you can help? cx

Answer 7

maybe

Answer 8

maybe isn't an answer..

Answer 9

yes it is. I just answered

Answer 10

maybe

Answer 11

-.-

Answer 12

I won't know if I can help until I see the questions.
\(\huge \color{pink}\heartsuit\)

Answer 13

shhhhhhh -.-