unknown9263
17.07.2019 •
Mathematics
The chart below contains the results of a survey in which students were asked about their cell phone plan.what percent of the students surveyed have a phone plan with texting?
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Ответ:
(-3/8)(+8/15)
Answer will be a negative number. Whenever multiplying a - negative number * a + positive = - negative number.
(-3/8)(+8/15)
Cross out -3 and 15 . Divide by 3. -3/3,=-1 15/3
= -1/5
Cross out 8 and 8. Divide by 8.
8/8= 1 , 8/8= 1
-1/5*1/1= -1/5
Answer : -1/5