like tacos........no tacos.....total
like pizza 57 13 70
no pizza 12 15 27
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total 69 28 97
relative frequency who both like tacos and pizzas = 57/70 = 0.81
13/15 - <span>1/5 </span>
<span>common denominator is 15 </span>
<span>Multiply numerator and denominator of 1/5 by 3 = 3/15 </span>
<span>13/15 - 3/15 = 10/15 </span><span>= 2/3
2/3 is your answer.</span>
the answer is 3648 quarts
.5 because first you add 1 on each side, that gets rid of the 1 on the left. then divide by 4
