elviaortiz402373
29.07.2019 •
Mathematics
The oriental pearl tower is 1535 feet tall it is 280 feet shorter than the canadian national tower in canada which eqaution can be used to find the height of the canadian national towerr
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Ответ:
x=height of canadian national tower
Ответ:
Answers:
w = 10 ft and l = 50 ft > second option
w = 20 ft and l = 60 ft > third option
w = 50 ft and l = 40 ft > fifth option
Explanation:
We are given that:
length should be at least 20 > length ≥ 20
equation for perimeter is : 2l + 2w ≤ 200
We will check each option as follows:
Option 1:
w = 50 ft and l = 10 ft
This option is incorrect as the proposed length is less than 20.
Option 2:
w = 10 ft and l = 50 ft
Since the length is greater than 20, the first condition is satisfied.
Now, we check the second condition:
2l + 2w = 2(50) + 2(10) = 100 + 20 = 120 ≤ 200
The second condition is also satisfied.
This option is correct
Option 3:
w = 20 ft and l = 60 ft
Since the length is greater than 20, the first condition is satisfied.
Now, we check the second condition:
2l + 2w = 2(60) + 2(20) = 120 + 40 = 160 ≤ 200
The second condition is also satisfied.
This option is correct
Option 4:
w = 90 ft and l = 30 ft
Since the length is greater than 20, the first condition is satisfied.
Now, we check the second condition:
2l + 2w = 2(30) + 2(90) = 60 + 180 = 240 > 200
The second condition is not satisfied.
This option is incorrect
Option 5:
w = 50 ft and l = 40 ft
Since the length is greater than 20, the first condition is satisfied.
Now, we check the second condition:
2l + 2w = 2(50) + 2(40) = 100 + 80 = 180 ≤ 200
The second condition is also satisfied.
This option is correct