Mathematics High School

When the survey results came back employees indicated that the lighting in the building is too low. There are 50 lights in the building it will cost 50 to replace each light the new lights are led lights that are brighter and more efficient and last 10 years it will save the company 305 per year in energy cost plus make a brighter more productive work space making employees happier how many years will it take for the new lights to pay for themselves round to the nearest year

Answers

Answer 1

Answer:

8 years

Step-by-step explanation:

There are 50 lights present in the building and each light cost $50. Therefore the cost of changing all the bulbs is:

Cost = number of lights * cost per light = 50 lights * $50 = $2500

Changing the lights in the building save the company $305 per year in energy cost. Therefore, the number of years required for the new lights to pay for themselves is:

number of years = cost of changing bulbs / money saved per year

number of years = $2500 / $305 per year = 8.2

number of years = 8 years to the nearest year

Related Questions

Find the missing length.

Answers

Answer:

Triangle 1 - 4

Triangle 2 - 10

Step-by-step explanation:

To find the missing side lengths of a right triangle, use the Pythagorean Theorem. The Pythagorean Theorem states that: a² + b² = c². In this equation, a and b are legs, and c is the hypotenuse.

Using this to solve triangle 1, you get the equation: a² + 3² = 5² or a² + 9 = 25. To solve for a², you subtract 9 from both sides to get a² = 16. To solve for a, find the square root of 16, which is 4.

Using the Pythagorean Theorem to solve for triangle 2, you get the equation: 6² + 8² = c² or 36 + 64 = c². Add 36 + 64 to get 100 = c². Find the square root of 100 to solve for c. The square root is 10.

Hope it helps!

After a battle six people were killed and 45 were injured. There were 467 people involved in all. What percent of the total people involved, to the nearest whole percent, were either killed or injured.

Answers

Answer:

11%

Step-by-step explanation:

solve the equatione ​

Answers

x=2.2 x= 2 2/9 hope this helps

Answer:

x = 20/11

Step-by-step explanation:

1/2x - 3/4x = 5 - 5/2x

1/4x + 5/2x = 5

11/4x = 5

11x = 20

x = 20/11

pls help i can’t find the answer anywhere

Answers

Answer:

(2x+3)(x+2)

100% its the right answer

Step-by-step explanation:

mya sold ipods on her website.she bought the the ipods for $80 each and included a 45% markup to get the selling price.what was the selling price for one ipod?

Answers

Answer:

$116.00

Step-by-step explanation:

80.00x45%=36.00

80.00+36.00=116.00

Lunch is 7.95 the tax is 10% what’s the total cost

Answers

Answer: ($)8.75

Step-by-step explanation:

To calculate the tax, simply do 10%(0.1)*7.95 to get 0.795, rounding up to 0.80(money typically rounds up).

To calculate the total cost, simply do 7.95+0.80 to get 8.75.

Hope it helps <3

The answer is : 8.745

help due in 10 min ????

Answers

Answer:

7 x 7 x 7

Step-by-step explanation:

When raising a number or expression to an exponent, you are really just multiplying the number or expression by itself.

That means 7³ is 7 multiplied by itself 3 times.

7 x 7 x 7

Hope this helps!

Which rectangle is similar to rectangle ABCD​

Answers

Answer:

JKLM is similar to ABCD

Step-by-step explanation:

Find the slope of the line
through the points (-2, 6) and (4, 12)?

Answers

I attached the image of the formula and answer :)

cmon this is my last question help me

Answers

Blue Box: 6.03
Orange Box: -3

please help me :) ....

Answers

It’s c) XS, i love your pfp btw!! :)

Which of the following numbers is an integer but not a whole number?
5/9
– 24
-3/5
98

Answers

Answer:

Step-by-step explanation:

the last one

The following numbers that is an integer but not a whole number is the last one 98

help asap!!! I don't get it ​

Answers

1y=365 days
1 day=24 hours
1min=60 seconds

Answer:

compounding annually = 1 time a day

compounding weekly = 52 times a year

compounding daily = 365 times a year

compounding monthly = 12 times a year

4.1 < 12
can someone please help me?​

Answers

Answer:

12 is greater

Step-by-step explanation:

11POINTS HELP Pretty Pwz

Answers

Answer:

the cube root of 512 is 8

Step-by-step explanation:

8×8×8=512

Answer:

8

Step-by-step explanation:

[tex]\sqrt[3]{512} =8[/tex]

All measures of the cube are the same so to get the volume u just multiply themselves 3 times x^3

ayo
Which triangle, if any, has side lengths of 15, 15, and 15?

It's not a triangle.
isosceles triangle
equilateral triangle
scalene triangle

Answers

Answer:

ugh girlll im in sm trouble rn

Step-by-step explanation:


2/x+2-1/x=-4/x(x+2)

Answers

I don’t know the answer but get Photomath it’ll help you
Step 1 simply
1+ 2x=-4 ( x + 2 )
Simply again
1+2x=-4x-8
Add 4x to both sides
1+2x+4x=-8
Simply again
1+6x =-8
Subtract 1
6x= -8-1
6x=-9
Divide both sides by 6
Divide x = -9\6
Now the answer is x = -3/2

CAN SOMEONE HELP ME ON THIS QUESTION PLZZ

Answers

Answer:

It's a reflection over the y-axis

Step-by-step explanation:

Answer:

reflection over the y axis

Step-by-step explanation:

i need help please only help if you know the answer

Answers

Answer:

D

Step-by-step explanation:

how many 4/3 are in 6

Answers

Answer:

4.5 or 4 1/2

Step-by-step explanation:

6/(4/3)=4.5

PLSSS HELPPP!!!!! NEED A FEW MORE POINTS!!

Answers

Answer:

it will be

Step-by-step explanation:

vertex would be (0,-1) and aos would be y=0

find the output y, when the input, x, is 5.
y = 5x - 3
Y =

Answers

Answer:

y = 22

Step-by-step explanation:

y = 5(5) - 3

y = 25 - 3

y =22

What is the greatest common factor of the polynomial below?

30 x -20

A. 5x
B. 10x
C. 5x?
D. 10%

Answers

Heyy I'm not sure if I'm right

12x^4 + 2x^3 - 30x^2

to find the GCF, let's first look at the coefficients.....the GCF of 12,2,and 30 is 2.

as for the variables....pick the one with the smallest exponent...and that would be x^2

so the GCF of this polynomial is 2x^2 <=

HELP ASAP ON MATH PLEASE

Answers

Answer:

Brad will get $10 for selling 20 cups of lemonade

Answer:

Brad will get $10 selling 20 cups of lemonade

solve for x
will give brainliest answer!!!

Answers

Answer:

We can write a proportion from this image:

x/2 = (x+2)/3

3x=2(x+2)

3x=2x+4

x=4

Let me know if this helps!

John bikes for 1014 hours at a rate of 3.25 miles per hour. Then, he bikes for 534 hours at a rate of 9.3 miles per hour. Which expression can be used to find the total distance, in miles, that John traveled? help plsssss

Answers

Answer:

8,261.7

Step-by-step explanation:

multiply the unit rate by the amount of miles they bike

Consider the given figure. What information about this figure would be used as a step in a proof of the Pythagorean theorem?

Answers

Answer:

showing that A D to the power of 2 plus D C to the power of 2 equal A C to the power of 2

Step-by-step explanation:

The information about this figure would be used as a step in a proof of the Pythagorean theorem is AC²  = AD²  + CD²

Pythagoras theorem.

The theorem states that the square of the hypotenuse is equal to the sum of the square of the adjacent and opposite

From the given figure, the triangle ADC is right angles. Hence we can apply the theorem on the triangle.

AC = hypotenuseAD = adjacentCD = opposite

According to the theorem:

AC²  = AD²  + CD²

Hence the information about this figure would be used as a step in a proof of the Pythagorean theorem is AC²  = AD²  + CD²

Learn more on Pythagorean theorem here: https://brainly.com/question/343682

Please help me I do not get it

Answers

Answer:

point A would be the answer

Answer:

point A ?

Step-by-step explanation:

Plot the three ordered pairs listed below on the coordinate grid.

(–4, –9)
(5, –3)
(–7, –2)

Answers

I hope this helps, use Desmos if it’s easier
hello bro how are you

Can someone please help me with these

Answers

Answer:

1. 1072.6

2. 753.6

3. 194.2

4. 59.5

5. 4848.3

6. 1818.3

Step-by-step explanation:

We have to use the trigonometric functions sin, cos, and tan. Remember the mnemonic SOH-CAH-TOA when solving these problems. (sinθ=opposite/hypotenuse, cosθ=adjacent/hypotenuse, tanθ=opposite/adjacent)

1. tan(40)=900/x

x=900/tan(40)

x=1072.6

2. tan(37)=x/1000

1000tan(37)=x

753.6=x

3. sin(18)=60/x

x=60/sin(18)

x=194.2

4. sin(48)=x/80

80sin(48)=x

59.5=x

5. tan(22)=x/12000

12000tan(22)=x

4848.3=x

6. tan(33)=x/2800

2800tan(33)=x

1818.3=x

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