1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
chubhunter [2.5K]
3 years ago
7

A new LED light bulb uses 10 watts of power. Since energy = power × time , then the energy used for this light bulb can be found

my multiplying the power times the time the bulb is lit. If the bulb is lit for one hour, the energy used will be 10 watt*hours or 10 Wh. If three 10 watt bulbs in one room are kept on for 5 hours, how many watt*hours of energy are used?
Mathematics
1 answer:
sergiy2304 [10]3 years ago
5 0

9514 1404 393

Answer:

  150 Wh

Step-by-step explanation:

We know the energy per bulb is 10 Wh per hour, so the total energy used by 3 bulbs in 5 hours is ...

  (10 Wh/(bulb·hour))×(3 bulbs)×(5 hours) = 10·3·5 Wh = 150 Wh

You might be interested in
What is 0.275 0.20 0.572 and 0.725 greatest to least
Andru [333]
.725 , .572 , .275, .2
You look at the first decimal place to see which is the greatest. 7 is greater than 5 and 2 so it's first. Then 5 is greater than 2 so it is next. For the last two numbers since 2 is the same value you look at the next decimal place. Since 7 is greater than 0 it comes next!
6 0
3 years ago
Alex is making 14 fruits salads for a party. He places 9 cherries in each of his fruits salads. What is the total number of cher
saul85 [17]
Alex uses 126 cherries for his fruit salads.
5 0
3 years ago
Read 2 more answers
If Andy had an ending balance of $5600 and Charlie had an ending balance of $5624.32, what is the difference in their account ba
MakcuM [25]
The answer is 24.32 is the difference
8 0
3 years ago
Read 2 more answers
Triangle B = 10cm <br>H = 4cm<br>area =​
charle [14.2K]

Answer:

I think it's 20

Step-by-step explanation:

10x4÷2 because vase times height,the divide by 1/2 which it 2 so answer is 20

3 0
3 years ago
Albertson's found that the demand for Coke products varies inversely as the price of the product. When the price of a Coke produ
romanna [79]

Answer:

859

Step-by-step explanation:

The demand for Coke products varies inversely as the price of Cole products.

Mathematically:

D α 1/p

Where D = demand, p = price of coke product

D = k/p

Where k = constant of proportionality.

Let us find k.

k = D * p

When Demand, D, is 1250, price, p, is $2.75:

=> k = 1250 * 2.75

k = $3437.5

Now, when price, p, is $4, the demand will be:

D = 3437.5/4

D = 859.375 = 859 (rounding to whole number)

The demand for the product is 859 when the price is $4.

8 0
3 years ago
Other questions:
  • Please help? A,b,c,d
    14·1 answer
  • Please help me with a maths question below
    5·1 answer
  • Can someone please please help me with this I’m sooo confused
    13·1 answer
  • The first group was responsible for making 160 suits while the second group was responsible for making 25% fewer suits in the sa
    11·1 answer
  • |10 - (-43)| absoulute value
    5·2 answers
  • 135 is what percent of 150?
    9·1 answer
  • Please Help....................................
    9·1 answer
  • Which of the following equations has a slope of -3 and a y-intercept of 8? *
    8·1 answer
  • Over 75 percent of the energy produced in France derives from nuclear power, while in Germany it is just over 33 percent.
    15·1 answer
  • What is the value of the expression below when w=5<br> 4w-9.
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!