Answer: The the speed of elevators is 22.55.
Explanation:
It is given that observation deck of the willis tower in Chicago Illinois is 1353 feet above the ground elevators lift visitors to that level in 60 seconds.
The speed is the change in distance with respect to time.
From the given information the total distance is 1353 and the total time is 60 seconds. So by the above formula we get,
Therefore, the speed of elevators is 22.55.
$5000 is the correct answer.
The formula for simple interest is I=prt. Anson gets 10% interest; 10% = 10/100 = 0.1. This gives us
I=p(0.1)(1) = 0.1p.
Jenny borrows 1000 more than Anson, so her principal is p+1000. Her rate is 8%; 8%=8/100 = 0.08. She invests it for half of a year, or 0.5. Together this gives us:
I=(p+1000)(0.08)(0.5)
= (p+1000)(0.04)
= p*0.04 + 1000*0.04
= 0.04p + 40
Together they earned 740:
0.1p+0.04p+40 = 740
Combine like terms:
0.14p+40 = 740
Subtract 40 from both sides:
0.14p+40-40 = 740-40
0.14p = 700
Divide both sides by 0.14:
0.14p/0.14 = 700/0.14
p = 5000
Answer:
03
Step-by-step explanation:
Subtract 4, divide by 2, then get 3
Answer:60
Step-by-step explanation:
The length of rectangle is 58 feet and width of rectangle is 49 feet
<em><u>Solution:</u></em>
Given that rectangle has a perimeter of 214 feet
Let "l" be the length of rectangle
Let "w" be the width of rectangle
It's length is 9 feet longer than its width
length = 9 + width
l = 9 + w ----- eqn 1
<em><u>The perimeter of rectangle is given as:</u></em>
perimeter = 2(length + width)
Substituting the given values we get,
214 = 2(l + w)
Substitute eqn 1 in above expression
214 = 2(9 + w + w)
214 = 2(9 + 2w)
214 = 18 + 4w
4w = 214 - 18
4w = 196
w = 49
Thus length = 9 + w = 49 + 9 = 58
Thus length of rectangle is 58 feet and width of rectangle is 49 feet
