Answer: 113.0 ft (bottom right corner)
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Explanation:
The triangle has a horizontal leg of 220 ft and a vertical leg of x ft. We'll use the tangent rule to connect the opposite side and adjacent side
opposite side = x
adjacent side = 220
this is with the reference angle shown in the diagram
So,
tan(angle) = opposite/adjacent
tan(26) = x/220
220*tan(26) = x
x = 220*tan(26)
x = 107.301169 ... see note below
x = 107.3
Now that we know the approximate value of x, we add on 5.7 to get
x+5.7 = 107.3+5.7 = 113.0
note: make sure your calculator is in degree mode. The value is approximate to 6 decimal places
Because it's decreasing, you use the formula (1-x/100)y with x the percentage decreased which is here 40, and y the number decreased which is here 90
So we get
(1-40/100) * 90
(100/100 - 40/100) * 90
60/100 * 90
5400/100
54
So 90 decreased by 40% is 54
Hope this Helps :)
Thank you for posting your question here at brainly. We find the answer by using mean (or average) when we use mean we add both together and divide by how many numbers we add. So 50 + 40 = 90. 90 / 2 = 45. So 45 is the average speed he traveled at the whole trip. 45 is your answer
1 Cancel
3
3.
−
3
4
x
=
−
1
−
4x
3
=−1
2 Multiply both sides by
4
x
4x.
−
3
=
−
4
x
−3=−4x
3 Divide both sides by
−
4
−4.
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3
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4
=
x
−4
−3
=x
4 Two negatives make a positive.
3
4
=
x
4
3
=x
5 Switch sides.
x
=
3
4
x=
4
3
5 small cards ($12) and 3 large cards ($11.85) and the total of both ($12 + $11.85) = $23.85
