Answer: He needs 9 hours to finish the task.
Step-by-step explanation:
Hi, first we have to subtract the gallons of water already in the tank (75) to the total capacity of the tank (300).
300-75 = 225
He needs to fill 225 gallons.
Since the pump Ross uses can fill 25 gallons of water per hour, the proportion is :
25 g / 1h
For 225 gallons:
225 g / x hours
Solving for x
25/1 = 225/x
x= 225/ (25/1)
x = 9 hours
Answer:
A
Step-by-step explanation:
A)
I:2.25*pretzels+1.5*drinks=463.50
II:pretzels+drinks=257
b)
with II:
pretzels+drinks=257
pretzels=257-drinks
substitute pretzels=257-drinks into I:
2.25*pretzels+1.5*drinks=463.50
2.25*(257-drinks)+1.5*drinks=463.50
2.25*257-2.25*drinks+1.5*drinks=463.50
-0.75*drinks=463.5-2.25*257
0.75*drinks=114.75
drinks=114.75/0.75=153
in II:
pretzels=257-drinks
pretzels=257-153=104
Answer:
x=37 CD=20
Step-by-step explanation:
We know this becuase the two triangles are congruent.
ZW and DA are similar sides
WX and AB are similar sides.
Make a proprtion of the sides.
Plug in the numbers
Cross multiply
And then solve for ZW
So our final answer is
Hope that helps :P