Yes I love this problem so good
Answer:
c=2
Step-by-step explanation:
3c+8=14
subtract 8 from both sides
3c=6
divide both sides by 3
c=2
We know that
if <span>4 electricians can complete a job in 8 hours
then
</span>100% of a job -------> 8 hours
x------------------> 1 hour
x=100/8----> x=12.5%
divide by 4 electricians
12.5%/4-----> 3.125%
that means each electrician can complete 3.125% of a job in 1 hour
therefore
3 electricians-----> 3*3.125%----> 9.375% in 1 hour
so
9.375%-----------> 1 hour
100%--------------> x
x=100/9.375----> x=10.67 hours
the answer is
10.67 hours
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Answer:
a = 9
Step-by-step explanation:
a+11=20
Subtract 11 from each side
a+11-11 = 20-11
a = 9
