Answer:
D
Step-by-step explanation:
Call the first person A who can do the job in 5 hours.
Call the second person B who can do the job in 7 hours.
The formula for this problem is
Time = A*B/(A + B)
Time = 5*7 / (5 + 7)
Time = 35 / 12
Time = 2 hours and 11/12 of an hour.
The answer is D.
132.27% just move the point
The answer is c, they are diploid
Answer:
x = 9
Step-by-step explanation:
Step 1: Simplify both sides of the equation.
2(x+5)=3x+1
(2)(x)+(2)(5)=3x+1(Distribute)
2x+10=3x+1
Step 2: Subtract 3x from both sides.
2x+10−3x=3x+1−3x
−x+10=1
Step 3: Subtract 10 from both sides.
−x+10−10=1−10
−x=−9
Step 4: Divide both sides by -1.
yeah.
