Answer:
2 hours
Step-by-step explanation:
Circumference = pi × d
126 = 3.14 × d
d = 40.127388535 yards
d = 40 yards (nearest whole number)
Time = 40/20 = 2 hours
Exact Form:
b = 3/2
Decimal Form:
b = 1.5
Mixed Number Form:
b = 1 1/2
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Change in April's weight is -7
<em><u>Solution:</u></em>
Let the initial weight be "x"
April lost 5 pounds in her first week of college
First week = lost 5 pounds
Therefore, x - 5
Over the next three weeks she lost 3 pounds, gained 2 pounds, and then lost 1 pound
<em><u>Next three week:</u></em>
Lost 3 pound
Gained 2 pound
Lost 1 pound
<em><u>Therefore, weight after 4 weeks is given as:</u></em>
x - 5 - 3 + 2 - 1 = x -7
After 4 week, the weight is x - 7
<em><u>The change in April weight is given as:</u></em>
Weight after 4 week - initial weight = x - 7 - x = -7
Thus change in April's weight is -7 (Negative sign represents loss in weight )
15.01% is the percent in which the population will decrease in 50 years.