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
jenyasd209 [6]
3 years ago
7

-QUICK PLEASE-

Mathematics
1 answer:
Zepler [3.9K]3 years ago
6 0

Answer:

Option B. 0.75 gallons is the right answer.

Step-by-step explanation:

Let the load of dishwasher used in house A = x gallons

Let the load of dishwasher used in house B is = y gallons

and similarly we assume for house C = z gallons

Now from the given question

On Friday amount of water used in all three houses = 17.5 gallons

From the table we will make the equation

x + 2y + 2z = 17.5-----(1)

For Saturday

2x + 3y + 4z = 31.5 ----(2)

For Sunday

2x + 2y + 3z = 24.75 -----(3)

By subtracting equation 3 from 2

y + z = 31.5 - 24.75 = 6.75 ------(4)

Equation (1) multiplied by 2 - equation (2)

2×(x + 2y + 2z) - (2x + 3y + 4z) = 17.5×2 - 31.5

y = 35 - 31.5 = 3.5

By putting y = 3.5 in the equation (4)

z = 6.75 - 3.5 = 3.25

By putting y = 3.5 and z = 3.25 in the equation (1)

x + 7 + 6.5 = 17.5

x = 17.5 - 13.5 = 4

Now the difference between load of dishwasher that uses least water and the most.

x - z = 4 - 3.25 = 0.75 gallons

Option B is the right answer.

You might be interested in
The systolic blood pressure (given in millimeters) of males has an approximately normal distribution with mean μ = 122 and stand
mash [69]

Answer:

.jsflkghSRgkehnrgkhnlkbhdlk

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
On Monday, Florencia's hair was h centimeters long. She got a haircut on Tuesday, so her hair was only 75%, percent of the lengt
irga5000 [103]

It seems that you are trying to find the length of hair of Florencia on Tuesday.

Given that length of the hair of Florencia on Monday = h centimeters

On Tuesday, she got hair cut.

So new length of the hair of Florencia on Tuesday = 75% of Monday value

= 75% of (h)

= 0.75* (h)

= 0.75h

Hence final answer is the length of the hair of Florencia on Tuesday is ( 0.75h ) centimeters.

8 0
3 years ago
Read 2 more answers
3. You earned $204 from your job last week. You have two relatives with birthdays coming up and you want to
san4es73 [151]

Answer:

62$

Step-by-step explanation:

FORGET THEM IM SAVING MY MONEY

4 0
3 years ago
Read 2 more answers
A rose garden is formed by joining rectangle and a semicircle, as shown below. The rectangle is 29 ft long and 21 ft wide. If th
Iteru [2.4K]

Answer:

The answer to your question is 116.53 ft

Step-by-step explanation:

Data

length = 29 ft

width = 21 ft

π = 3.14

Process

1.- Calculate perimeter of the rectangle and subtract 1 length

Perimeter of the rectangle = 2l + 2w - l

Perimeter of the rectangle = 2(29) + 2(21) - 29

                                            = 58 + 42 - 29

                                            = 71 ft

2.- Calculate the perimeter of a semicircle

Perimeter = 2πr/2 = πr

radius = r = 29/2

               = 14.5 ft

Perimeter = (3.14)(14.5)

                 = 45.53 ft

3.- Calculate the total length of the fence

fence = 45.53 + 71

          = 116.53 ft

7 0
3 years ago
2.) Determine the sale price to the nearest cent<br> $39.00 jeans<br> 40% off
Sonbull [250]
Ok ok so I saw that someone else had given you an answer but I thought it might be best if you got an explanation to go with it.

Basically to know what your final price is you need to know what percentages represent.
Since they are simply parts of a whole (because you know 100% of something is a whole) we can look them as fractions like 40/100 in this case.

Then we can multiply 39.00 by 40/100 or 0.40 in decimal form and get 15.60.

It’’s important to remember that this 15.60 is just what 40%of 39 is so we still need to subtract it from our total to get the sales price.

39-15.60=23.40

So $23.40 is the sales price

Hope this helps!
7 0
1 year ago
Read 2 more answers
Other questions:
  • There are 140 members in a community sports program. Sixty-five percent of these members play soccer.
    15·1 answer
  • the two-way table shows the types of food and drink, if any, that visitors on a bus tour purchased from a lunch stand.
    9·2 answers
  • 1. Suppose you invest $500 at 10% interest, compounded annually. After 5 years, how much money would you have in your account? R
    13·1 answer
  • if you take out a loan that cost $130.50 over 9 years and interest rate of 10% how much total was the loan for
    7·1 answer
  • Tim has $250 in his account. This is $75 more than his brother Nate has in his account. Write and solve an addition equation to
    15·2 answers
  • A triangle has an area of 40.2 square feet and a base of 12 feet. What is the height?
    6·2 answers
  • Hey guys can u help me i took like 3 hours to know the answer but i cant get it pls help me thank you
    14·1 answer
  • Write in terms of i<br> Simplify your answer as much as possible.<br> square root of -48
    8·1 answer
  • DO NOT GIVE AN ANSWER FOR ME TO DOWNLOAD...<br> 3x+8 &lt; 14 JUST GIVE THE ANSWER PLS
    6·2 answers
  • Takeru Kobayashi of Japan ate 53.5 hot dogs in 12 minutes to win a contest what is the unit rate in hot dogs per minute
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!