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Aloiza [94]
3 years ago
6

If 65% of the light are on what percent of the lights are off

Mathematics
2 answers:
Nana76 [90]3 years ago
3 0

Answer:

since 100% is everything

100 - 65 = 35%

Step-by-step explanation:

<em>35% of the lights are off</em>

inn [45]3 years ago
3 0

Answer:

35% are off

Step-by-step explanation:

The lights are either on or off

That is 100%

100 -65 = 35

65% are on

35% are off

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Does 27/60 -8/60=19/60?
solniwko [45]
Yeah ! It's correct
5 0
3 years ago
How do I solve this:<br><br>180-(2x-40)<br><br>its a geometry problem.
Anastasy [175]

Answer:

180-1(2x-40)

180-1(2x)+(-1)(-40)

180+−2x+40

Combine Like Terms:

180+−2x+40=(−2x)+(180+40)

-2x+220


Step-by-step explanation:


8 0
3 years ago
n a survey of 331 customers, 66 say that service is poor. You select two customers without replacement to get more information o
yaroslaw [1]

Answer:

3.93% probability that both say service is poor

Step-by-step explanation:

A probability is the number of desired outcomes divided by the number of total outcomes.

The customers are chosen without replacement, and the order in which they are chosen is not important. So we use the combinations formula to solve this question.

Combinations formula:

C_{n,x} is the number of different combinations of x objects from a set of n elements, given by the following formula.

C_{n,x} = \frac{n!}{x!(n-x)!}

What is the probability that both say service is poor?

Desired outcomes:

Two saying it is poor, from a set of 66. So

D = C_{66,2} = \frac{66!}{2!(66-2)!} = 2145

Total outcomes:

Two customers from a set of 331. So

T = C_{331,2} = \frac{331!}{2!(331-2)!} = 54615

Probability:

p = \frac{D}{T} = \frac{2145}{54615} = 0.0393

3.93% probability that both say service is poor

4 0
2 years ago
Evaluate f(x) = X - 8 for x = -8
leonid [27]

Answer:-16

Step-by-step explanation:

6 0
3 years ago
Ying Zyiyu covers the first 300 miles of a trip traveling at 60 mph. and the last hundred miles traveling at 40 mph. What was hi
UNO [17]

Answer:

53.33 mph

Step-by-step explanation:

Speed is the rate of change of distance with time. Mathematically,

speed = distance/time

and is measured in miles per hour or meter per second.

To get the average speed over the entire trip, we must get the total time  spent on trip and the total distance, then apply the speed formula

Time for the first 300 miles

= 300/60

= 5 hours

Time spent on the last 100

= 100/40

= 2.5 hours

Total time of the trip = 5 + 2.5

= 7.5 hours

Total distance covered

= 300 miles + 100 miles

= 400 miles

Average speed on the trip

= 400/7.5

= 53.33 miles per hour

7 0
3 years ago
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