Answer:
Answer:Do it yourself.
Step-by-step explanation:
Answer:
Plumber A
Step-by-step explanation:
Given the following :
Hours ___repair cost
________A ____B____C_____D
1 ______$35___55___50____50
2 _____ $65__ $75__ $75__ $60
3 _____ $95__ $95 _$100 ___$70
Charge plan:
Flat fee(x) + hourly rate(y)
For 1 hour:
Plumber A:
x + y = 35 ; x = 35 - y
x + 2y = 65 ;
35 - y + 2y = 65
y = 65 - 35 = $30 hourly
Plumber B:
x + y = 55 ; x = 55 - y
x + 2y = 75 ;
55 - y + 2y = 65
y = 65 - 55 = $10 hourly
Plumber C:
x + y = 50 ; x = 50 - y
x + 2y = 75 ;
50 - y + 2y = 65
y = 65 - 50 = $15 hourly
Plumber D:
x + y = 50 ; x = 50 - y
x + 2y = 60 ;
50 - y + 2y = 60
y = 65 - 50 = 10 hourly
Hence, Plumber A charges the highest hourly rate at $30 per hour
Answer:
one 40% discount
Step-by-step explanation:
lets use 100$ total for an example.
Say we have 40% of 100 so the total would be 60$ but it we have 20% and then another 20% off that we would have a final total of 64$\
Prove: 100*.4=40 100-40=60
100*.2=20 100-20=80, 80*.2=16 80-16= 64$
The number of simple events in this experiment according to the probability is 16.
According to the statement
we have to find that the number of simple events in this experiment.
So, For this purpose, we know that the
Simple events are the events where one experiment happens at a time and it will be having a single outcome. The probability of simple events is denoted by P(E) where E is the event.
And according to the given information is:
Total number of coins tossed is 4.
then
the simple events become
Simple events = no. of coins * total coins tossed
Simple events = 4*4
Now solve it then
Simple events = 16.
So, The number of simple events in this experiment according to the probability is 16.
Learn more about simple events here
brainly.com/question/7965468
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Answer:
X=0.8 or x=4/5
Step-by-step explanation: