Mike will receive $38.00 back on the tax free weekend.
Answer:
PK=8.49m
Explanation:
We have sine formula
By sine formula we have
We have PS = 12, ∠P=105° and ∠S=30°, so ∠K=180°-(105°+30°)=45°
Substituting
Let n be a number
Math translation:
• The sum of a number and 81 is (n + 81)
• The product of -3 and that number is -3n
• (n + 81) is greater than (-3n) is translated as n + 81 > -3n
Solving for n:
n + 81 > -3n
n - n + 81 > -3n - n (Subtract n on both sides)
81 > -4n
81/4 > (-4/4)n (Divide by 4 on both sides)
81/4 > -n
-81/4 < n (Transfer the negative sign on the other side and change the inequality sign)
n > -81/4
Hope this helps.
Suppose that all work that has to be done is 1. Then:
- One crew can do this work in 10 hours. This means that they will do per hour.
- Another crew can do this work in 14 hours.This means that they will do per hour.
- Both crews together will do per hour.
If together they can do per hour, then for all work they will spend
hours or 5 hours 50 minutes.
Answer: 5 hours 50 minutes.