Answer:
77) YES , 78) YES , 79) NO , 80) YES
Step-by-step explanation:
77) 12/4=3 and 18/6=3 so YES
78) 30/6=5 and 40/8=5 so YES
79) 36/25=1.44 and 48/40=1.2 so NO
80) 15/5=3 and 13.8/4.6=3 so YES
Answer:
8 lines
Step-by-step explanation:
5 yards = 4.572 meters
40 m /4.572 = 8.7489063867
8 lines
Answer:
(a) 43%
(b) 49%
Step-by-step explanation:
Add a total column and a total row to the table:
![\begin{tabular}{| c | c | c | c |}\cline{1-4} & Playing video games & Watching TV & Total\\\cline{1-4} Girls & 45 & 108 & 153\\\cline{1-4} Boys & 84 & 63 & 147\\\cline{1-4} Total & 129 & 171 & 300\\\cline{1-4}\end{tabular}](https://tex.z-dn.net/?f=%5Cbegin%7Btabular%7D%7B%7C%20c%20%7C%20c%20%7C%20c%20%7C%20c%20%7C%7D%5Ccline%7B1-4%7D%20%26%20Playing%20video%20games%20%26%20Watching%20TV%20%26%20Total%5C%5C%5Ccline%7B1-4%7D%20Girls%20%26%2045%20%26%20108%20%26%20153%5C%5C%5Ccline%7B1-4%7D%20Boys%20%26%2084%20%26%2063%20%26%20147%5C%5C%5Ccline%7B1-4%7D%20Total%20%26%20129%20%26%20171%20%26%20300%5C%5C%5Ccline%7B1-4%7D%5Cend%7Btabular%7D)
<h3><u>
Part (a)</u></h3>
Percentage of students who prefer video games:
![=\dfrac{\textsf{total no. of students who play video games}}{\textsf{total no. of students}} \times \sf 100\%](https://tex.z-dn.net/?f=%3D%5Cdfrac%7B%5Ctextsf%7Btotal%20no.%20of%20students%20who%20play%20video%20games%7D%7D%7B%5Ctextsf%7Btotal%20no.%20of%20students%7D%7D%20%5Ctimes%20%5Csf%20100%5C%25)
![=\sf \dfrac{129}{300} \times 100 \%](https://tex.z-dn.net/?f=%3D%5Csf%20%5Cdfrac%7B129%7D%7B300%7D%20%5Ctimes%20100%20%5C%25)
![= \sf 43 \%](https://tex.z-dn.net/?f=%3D%20%5Csf%2043%20%5C%25)
<h3><u>Part (b)</u></h3>
Percentage of students who are boys:
![=\dfrac{\textsf{total no. of students who are boys}}{\textsf{total no. of students}} \times \sf 100\%](https://tex.z-dn.net/?f=%3D%5Cdfrac%7B%5Ctextsf%7Btotal%20no.%20of%20students%20who%20are%20boys%7D%7D%7B%5Ctextsf%7Btotal%20no.%20of%20students%7D%7D%20%5Ctimes%20%5Csf%20100%5C%25)
![=\sf \dfrac{147}{300} \times 100 \%](https://tex.z-dn.net/?f=%3D%5Csf%20%5Cdfrac%7B147%7D%7B300%7D%20%5Ctimes%20100%20%5C%25)
![= \sf 49 \%](https://tex.z-dn.net/?f=%3D%20%5Csf%2049%20%5C%25)
Answer:
i dont know much just do ur work correctly
Step-by-step explanation: