How to find rapidly the coordinates of Q: since Q is the center of gravity of the triangle ABC, so we have the following vector relationship vecQA +vecQB +vecQC =<span>vec0 </span><span>vecQA=(x-3, y+2) </span><span>vecQB=(x-1, y+5) </span><span>vecQC=(x-7, y+5) </span><span>vec0=(0, 0) </span> so, vecQA +vecQB +vecQC =<span>vec0 is equivalent to
</span>x-3 +x-1+x-7 =0, and y+2+y+5+<span>y+5=0 so 3x-11=0 implies x=11/3 </span><span>and 3y+12=0 implies y=-12/3
finally the </span><span>the coordinates of point Q is (11/3, -4)</span><span>
If there are $22 made per hour for 7 hours, you’d add 22 per hour in your table. 1 hour=$22, 2 hours=$44, 3 hours=$66, and so forth. make a table of these numbers up to 7 hours.
The total is 275 because 100% divided by 20% is 5 and if 20%= 55 then that means that 55 goes into 100% 5 times so you multiply 55 by 5 to get 275. Hope I helped! Please rate me as the brainliest!
