Answer:
the answer would be 1.653 I think I'm not totally sure... sorry
There is 4 X so you use 360- (11+1) which is 348 and now divide by 4 which is now 87
<h2>Thank you for asking</h2><h2 /><h2>From Cambridge</h2><h2 />
Dup= 72 miles
<span>ddown= 120 miles </span>
<span>v= riverspeed </span>
<span>rup= 32mph - v </span>
<span>rdown= 32mph + v </span>
<span>t both ways= t </span>
<span>d=r*t </span>
<span>d/r=t </span>
<span>t=ddown/rdown </span>
<span>t=dup/rup </span>
<span>dup/rup = ddown/rdown </span>
<span>(72)/(32-v)=(120)/(32+v) </span>
<span>3840-120v=2304+72v </span>
<span>1536=192v </span>
<span>v=8</span>
Answer:
(13+9)+4=26
explaiation
the order of numbers in an addition problems doesn't affect the Sum
You can multiply 8 times 9 to get 72 and then move the decimal over to the right to get the answer of 7.2
