Answer: 223.77 minutes
Step-by-step explanation:
For this exercise you need to use the following formula:
Where 
is the individual time for object A, 
is the individual time for object B and 
is the time for A and B working together.
In this case, analizing the information given in the exercise, you can identify that:
Knowing these values you can substitute them into the formula and then you must solve for "t" in order to calculate how long will it take working together.
You get that this is:
Answer:
93.75
Step-by-step explanation:
well think about this he purchased 7 songs then he is left with $ 41.25 on his card then he bought 18 songs for 27.50 would tell you how much was used what it wants is for you to figure out the starting number using the equation 7+18= 25 and 41.25+27.50= 68.70. which would make 68.70+ 25= 93.75
Replace the side you don't know with x and/or y and solve
Answer:
too many problems
Step-by-step explanation:
First good
good
good
Answer:
∠ YVZ = 56°
Step-by-step explanation:
∠ WVZ = 90° ( given ), thus
∠ WVY + ∠ YVZ = 90, substitute values
2x + 3x + 5 = 90
5x + 5 = 90 ( subtract 5 from both sides )
5x = 85 ( divide both sides by 5 )
x = 17
Thus
∠ YVZ = 3x + 5 = 3(17) + 5 = 51 + 5 = 56°
