Answer:
The answer is B
Step-by-step explanation:
(-2.4) (-1.8) and (-0.6) (-0.4) all these numbers
<em>have the save sign also -2.4 and 1.8 is -4.32 -0.6 and -0.4 is</em>
<em>-0.24 -4.32 and -0.24 is -1.0 </em>
The answer is c to your question
Answer:
see below
Step-by-step explanation:
The equation to determine the work time is
1/a+1/b = 1/c where a and b are the times alone and c is the time together
1/80 + 1/30 = 1/c
Multiply by the least common denominator to clear the fractions, which is 240c
240c(1/80 + 1/30 = 1/c)
3c+8c = 240
11c = 240
Divide by 11
11c/11 =240/11
c = 240/11 minutes
c=21.81818
Approximately 22 minutes
Answer:
a i think im sorry if wrong
C. s=4
8+4s-2s=16
8+2s=16
8-8+2s=16-8
2s/2=8/2
s=4