3) A staircase of steps in a swimming pool has a vertical rise of 15 inches per step and a landing of 19 inches. Answer the foll
owing questions showing each step of your work:
a) What is the angle of elevation (rounded to the nearest whole degree)?
b) If the landing of each step is changed to 16 inches and the elevation of each step to 22 inches, what is the new angle of elevation for the staircase (rounded to the nearest whole degree)?
a) What is the angle of elevation (rounded to the nearest whole degree)?
b) If the landing of each step is changed to 16 inches and the elevation of each step to 22 inches, what is the new angle of elevation for the staircase (rounded to the nearest whole degree)?
1 answer:
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Answer:
1 1/4
Step-by-step explanation:
five eighths plus five eighths equals ten eighths simplified to one and two eighths and simplified again to one and one fourth.
Answer:
Option b) is correct
3x+4(2x+4)=17 Substitute (2x+4) for y in the second equation
Step-by-step explanation:
Given Equations are
and
To solve the given equations we have to find the value of
x and y values.
Here y value is given so that we can substitute y=3x+4 value in second equation
ie., Substitute equation (1) in (2) equation we can easily get x value.
Therefore substitute (2x+4) for y in the second equation we get
3x+4(2x+4)=17
Option b) is correct