a candy bar cost the store $0.79. find the price of the candy bar if sold with a 65% mark up
I believe the answer to your question is $1.30.
How I did it:
65%=65/100=0.65 this is the percentage in decimals
0.79x0.65=0.5135$ this the amount (of money, in this case) it is increasing by, so add it to the original price:
0.79$+0.5135$=1.3035 round that to 1.30$ that's the answer
ta-DA! :P
Find 65% of 79 c/= (Yay rudimentary cent sign!) to begin with.
$${\mathtt{79}}{\mathtt{\,\times\,}}{\mathtt{0.65}} = {\frac{{\mathtt{1\,027}}}{{\mathtt{20}}}} = {\mathtt{51.35}}$$
Add that number to the original.
$${\mathtt{79}}{\mathtt{\,\small\textbf+\,}}{\mathtt{51.35}} = {\frac{{\mathtt{2\,607}}}{{\mathtt{20}}}} = {\mathtt{130.35}}$$
The candy bar would then cost 130 c/= (Or, if you prefer, $1.30)
I believe the answer to your question is $1.30.
How I did it:
65%=65/100=0.65 this is the percentage in decimals
0.79x0.65=0.5135$ this the amount (of money, in this case) it is increasing by, so add it to the original price:
0.79$+0.5135$=1.3035 round that to 1.30$ that's the answer
ta-DA! :P