Answer:
40/9
Step-by-step explanation:
Use the work formula, + = , where A is the amount of time it takes one person, B is the amount of time it takes another person, and T is the time it takes for them to work together.
Plug in the times for David and Alex alone:
+ =
Find the least common denominator, which is 40.
+ =
=
Cross multiply and solve for T:
9T = 40
T = 40/9
So, if they worked together, it would take them 40/9 hours
Answer:
where are the numbers tell me and ill edit my answer again
Step-by-step explanation:
Answer:
D
Step-by-step explanation:
Given that the segment is an angle bisector then the ratio of sides and base are equal, that is
= ( cross- multiply )
10x = 72 ( divide both sides by 10 )
x = 7.2 → D
Step-by-step explanation:
500-350=150, you have 150 to buy bottles with
150÷1.20=125
you can buy 125 bottles with 350 left over