15 electricians worked for 24 days to the whole job, now, there are 15 of them, so on any given day, each electrician worked one whole day, in 24 days, that one electrician worked 24 days total.
now, there were 15 electricians on any given day though, since each one of them worked the whole day that one day, so the "days work worth" on a day is 15, so the house gets 15days worth of work because of that.
so how many "days worth" did all 15 do on the 24 days, well, 15+15+15+15+15+15+15+15+15+15+15+15+15+15+15+15+15+15+15+15+15+15+15+15, namely 15 * 24, or 360 days worth of work.
since it takes 360 days worth of work to do the whole wiring, in how many days would 18 electricians do it? 360/18.
Answer:
the first one is 3 second is 1 third is 4 and the last is 2
Answer:
A. 77.4
Step-by-step explanation:
<u>Linear approximation formula</u>
Given function:
Use the chain rule to differentiate the function.
Differentiate the two parts separately:
Put everything back into the chain rule formula:
.
The <u>linear approximation</u> at a = 8 is:
Finally, substitute x = 7.8 into the <u>linear approximation equation</u>:
1.y varies directly with x
2.substitute the value of x and y in the equation below
y=kx
where k is the constant term
60=20k
k=60\20
k=30
:y=30x.....is the law
To find y when x is 12
You reinstate the law which is y=30x
Then substitutes the value of x to determine y
y=30*12
y=36.
Answer:
151/30
Step-by-step explanation:
if you subsitute it you will get 3 1/10
