Challenge accepted.
CE / 2 = 3JQ / 7
7(CE) = 2(3JQ)
7CE = 6JQ
/6Q /6Q
7CE
/6Q = J
Answer is A. I ain't fully sure cuz I'm only in grade 9 lol
Answer:
66 and 2/3% is 66.66(or.67 could go either way)
Step-by-step explanation:
2/3 is your fraction answer and 66.66 is your decimal answer, hopefully this helps.
Answer:
D x > 2; f Superscript negative 1 Baseline (x) = 2 + StartRoot x + 2 EndRoot
Step-by-step explanation:
Apply this method when doing problems similar to this one.
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>
Alvin is 16 and Elga is 8.
16 is two times bigger than 8 and 16+8= 24
