<span>–4.75 + 2.19
The easiest way to do this (in my opinion) is to switch signs:
4.75 - 2.19:
4.75
-2.19
=2.56
Finally, put the - sign back to get
-2.56
The answer is B.
</span>
Log(18) - log(p+2)
because base of both logarithms is 10 that means we can merge them into one logarithm
the rule is as fallows:
log(b) - log(c) = log (b/c)
log(b) + log(c) = log(b*c)
since sign between our 2 logarithms is - that means that we need to divide
answer is:
log(18/(p+2))
-2x+12 because you gotta distribute your -2 to the rest of the equation.
Answer:
20 days
Step-by-step explanation:
t = time required by one worker to complete the job alone
(t+8) = time required by the other worker
So:
7.5/ t + 7.5/ (t + 8) = 1
Solve for t.
...
t = 12 days, the first guy working alone
The other worker would finish the job in 20 days.
Answer:
Answer should be 5/2 I thinkkkkk