zoelynn8386
04.04.2020 •
Mathematics
A survey of 200 college students yielded the following information: 98 people owned a laptop, 125 owned a smart phone, and 72 owned both. How many people owned a laptop but not a smart phone?
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Ответ:
60. By logic of equal angles, the top two angles at the top of the triangle should be 40+40, because the two angles at the bottom of the right triangle are both 40. 40+80=120. 180-120 = 60.
Step-by-step explanation: