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
Orlov [11]
3 years ago
5

Please help answer ASAP

Mathematics
1 answer:
uysha [10]3 years ago
7 0
6.43125...

To the nearest cent, I'm assuming they mean, 6.43, since there is no 5 or higher number in the thousandths place...

You might be interested in
What percentage of Coach passengers did not check bags
Andreyy89

Answer:

7

Step-by-step explanation:

2

4 0
3 years ago
What is orthogonal in linear algebra
o-na [289]
This is a square matrix whose entries are real and rows and columns are orthogonal unit vectors.
8 0
3 years ago
Read 2 more answers
Adult tickets to Space City amusement park cost x dollars. Children's tickets cost y dollars. The Garcia family bought 3 adult a
KengaRu [80]

let the number of adult tickets be x and the number of children tickets be y

3x + y = 164...equ(1)

2x + 3y = 174....equ(2)

multiplying equation 1 by 3

9x + 3y = 492

subtracting equation 2 from 1

7x = 318

x = 45.43 dollars

substituting the value of x into the equation

3(45.428) + y = 164

y = 164 - 3(45.428)

∴y  = 27.71 dollars



8 0
3 years ago
A large appliance such as a water heater is only running when it has clicked on and is actually heating water. The time your wat
mafiozo [28]

a) Total cost (per day) ≈ $1.40

​b) Total cost (per year) ≈ $510

c) New annual cost = $327

d) The number of years that the water heater pays for itself is; approximately 4 years

<h3>How to calculate Energy Bill?</h3>

Wattage per hour = 4200 Watts per hour

Number of hours per day = 3 hours

Cost per unit = $0.11 per kilowatt-hour

Savings rate = 36%

Cost water heater = $1,100

a) The total wattage is the product of the wattage per hour and the number of hours;

Total wattage (per day) = Wattage per hour × Number of hours

= 4,200 watts per hour × 3 hours

= 12,600 watt-hours

= 12.6 kilowatt-hours

​

The total cost is then the product of the total wattage and the cost per unit:

Total cost (per day) = Total wattage × Cost per unit

Total cost (per day) = 12.6 kilowatt-hours × $0.11 per kilowatt-hour

Total cost (per day) = $1.386

Total cost (per day) ≈ $1.40

​

b) The total cost in a year is the product of the total cost in a day and the number of days in a year. There are 365 days in a year (assuming no leap year).

Total cost (per year) = Total cost (per day) × Number of days in a year

Total cost (per year) = $1.40 × 365

Total cost (per year) = $511

Total cost (per year) ≈ $510

​

c) We are told that this new water heater saves 36% of annual cost. Thus;

Amount saved = 36% * 510 = $183.6

Thus;

New annual cost = $510 - $183 = $327

d) The number of years that the water heater pays for itself is;

1100/327 = 3.36 or approximately 4 years

Read more about Energy Costs at; brainly.com/question/14277272

#SPJ1

6 0
1 year ago
Two numbers add to 151 and the second is 21 bigger than the first. What are the two numbers?
IRISSAK [1]
96 plus 75 I think that is the answer
4 0
3 years ago
Read 2 more answers
Other questions:
  • Purslane bought 350 rolls of toilet paper for the whole year. How many rolls of toilet paper per month is that?
    7·2 answers
  • Sherita’s club is selling grapefruit to raise money. For every box they sell, they get $1.35 profit. They have sold 84 boxes alr
    9·2 answers
  • Find the median for the following set of numbers: 100, 110, 120, 125, 140, 150, 160
    9·2 answers
  • What’s the cost after discount is applied
    8·2 answers
  • In four rounds of a card game, you get scores of -1,-4,-8, and 10. What is your score ?
    6·1 answer
  • Graph the system of equations <br> 4x+4y=16<br> x+6y=-6
    9·1 answer
  • A right triangle with a perimeter 24 sides of length 2x, (2x+2) and (2x+4) what is the area of the triangle
    13·1 answer
  • Three times a number plus six is the same as twice the same number plus nine. What is the number?
    15·2 answers
  • G.1.- Una Recta contiene los puntos (-3,7)
    11·1 answer
  • Work out the mean of these numbers. Please help.
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!