Answer: √0.16
Step-by-step explanation:
√0.16 = 0.4
<span>Faster maid DATA:
time = x hr/job ; rate = 1/x job/jhr
Slower maid DATA:
time = 3x hr/job ; rate = 1/3x job/hr
Together DATA:
time = 3 hr/job ; rate = 1/3 job/hr
Equation:
rate + rate = together rate
1/x + 1/3x = 1/3
Multiply thru by 3x to get:
3 + 1 = x
x = 4 hrs (time for the faster maid to do the job)</span>
<h2>39/6 = 6.5</h2><h2 /><h2>6 hours 30 minutes</h2>
Answer:
64.8% of elephants were killed for ivory
Step-by-step explanation:
divide the number of elephants killed for ivory by the total number of elephants killed: 186÷287= 0.6780
multiply your answer by 100 to get a percentage: 0.6780 x 100= 67.8%