2 years ago

How much electricity is used, on average, by a security system that is always on over one year?

1 answer:

8 0

This would be equivalent to one kilowatt (1 kW) of power sustained for one ... A device using 100 watts over 10 hours would utilize 1kWh

You might be interested in

a fountain in a pond has a pump that recirculates 75 gallons of water in 1/4 of an hour.express this rate as a unit rate in gall

olga55 [171]

So if in 1/4 of an hour 75 gallons are pumped you would multiply 75 by four which will give you 300. This means 300 gallons are pumped in an hour

6 0

2 years ago

Find an equation of variation in which y varies jointly as x and z and inversely as the product of w and p, where yequalsstartf

leva [86]

To solve this problem you must apply the proccedure shown below:

1. You have that $y$ varies jointly as $x$ and $z$ and inversely as the product of $w$ and $p$ . Therefore, you can write the following equation, where $k$ is the constant of proportionality:

$y=k(\frac{xz}{wp} )$

2. Now, you must solve for the constant of proportionality, as following:

$k=\frac{ywp}{xz}$

3. Susbtiute values:

$y=\frac{7}{28} \\ x=7\\ z=4\\ w=7\\ p=8$

$k=\frac{(\frac{7}{28})(7)(8))}{(7)(4)} =0.5$

4. Substitute the value of the constant of proportionality into the equation:

$y=0.5(\frac{xz}{wp})$

The answer is: $y=0.5(\frac{xz}{wp})$

7 0

2 years ago

Solve the inequality 9h+2< -79

Dmitrij [34]

9h < -79 - 2
9h < -81
h < -81/9
h < -9

6 0

2 years ago

Someone help with my homework

Rashid [163]

Answer : C
15.1x33.5= ans C

6 0

3 years ago

Read 2 more answers

Start with the equation 4·0=0 to explain why 4·−10 must equal −40 . Drag descriptions and equations to the table to complete the

seraphim [82]

If 4·10= 40 then 4·-10 would equal -40 bc a positive times a negative equals a negative.

Hope this helped!!

6 0

2 years ago