Mathematics Middle School

A washing machine is filling up with water at a constant rate. The rate is Three-fourths of a gallon in 1 over 5 of a minute. Don calculated the unit rate to be 3 over 20 of a gallon per minute. What did he do wrong?

Answers

Answer 1

Answer:

First, you have to see how many gallons fill in a minute, obviously, so take 3/4 and divide it by 1/5, which gives 15/4. so you can see, don multiplied the two numbers instead of dividing, which is what he did wrong.Step-by-step explanation:

Answer from NukeExplosions1

Answer 2

Answer:

What he did wrong is that he multiplied the denominator wrong. it is supposed to be a 15. Don should re-calculate it to 3 over 15 of a gallon per minute.

hope this helped.

let me know if I am wrong.

have a great day.

Related Questions

help pls ! will give brainlest lol

Answers

Answer:

y=3/4x

Step-by-step explanation:

From the origin (0,0) count the rise to the next point (3) and then the run (4) leaving you with 3/4 as your slope.

well, we see that it is a linear function.

so, we should make an equation that follows:


y = mx + b


b = y intercept, which is 0 because it connects at the origin.


m is the slope, which is rise/run.

we find a point at ( 0.7 , 0.5 ).

the rise is 0.5, and the run is 0.7, so we do

0.5/0.7

and we get 0.714285714285714, which we can round to 0.7143 for the m.

we have everything we need.


so,


y=0.7143x


(the b is 0, so we don’t have anything else to add).


hope this helped!

PLS HELP
What is the diameter of a plate with circumference of 25 cm.?

Answers

The formula for finding diameter from the circumference is d= c/3.14.
Using this formula, plug in your circumference, as shown below.
d=25/3.14
d=7.96


the diameter is 7.96

What is the y-intercept of a line that has a Slope of 3 and passes through point (-1, -7)

Answers;
A. -10
B. -4
C. 3
D. 7

Answers

Answer:

B)-4

Step-by-step explanation:

y=mx+c

sub in a point and gradient/slope to get c

-7=3(-1)+c

-7=-3+c

-7+3=c

c=-4

y=3x-4

if u looking for the y intercept make x=0

y=3(0)-4

y=-4

C is the answer because of the fact that they are doing a lot

What is the length, in units, of the line segment with endpoints at (1, 4) and (3, 7)?
A. √137

B. √15

C. √5

D. √13

Answers

Answer:45

Step-by-step explanation:

on edge

The correct answer is C!

plz help for 100 points what I need help with is in the pictures

Answers

I can’t see the picture

You just found the car of your dreams. It will cost $24,000. You have been saving for a car since 3rd grade and now have $6,000. Your dad will match that with another $6,000 for the car. You will pay a simple interest of 10% on the balance of what you owe after you give the car dealership the money you have between your dad and yourself.
How much money will you still owe?

Answers

Answer:

I think the answer is 13,200

Step-by-step explanation:

6k+6k=12,000 half of the price of the car

.10x12000= 10% interest = 1200 + rest of the balance(12,000)=13,200

You will owe 12,000+ entrance

In which pair do both decimals represent rational numbers?

Answers

Answer:

A

Step-by-step explanation:

0.318 is a decimal that ends

0.3444... can be turned into the fraction 31/90.

Answer:

A

Step-by-step explanation:

Solve two and one-third times two and three fourths (Will give brainliest)
A.four and three twelfths
B.six and five twelfths
C.seven and five twelfths
D. eight and three twelfths

Answers

2+1+1+1= 6 and 2+3= 5

3×4= 12

(B) six and five twelfths

B. Six and five twelfths

What is j?



j / 5.68 = 0.71

Answers

the answer is : j=4.0328

Answer:

8

Step-by-step explanation:

On a coordinate grid, point L is at (-4, 4) and point S is at (8, 4). The distance (in units) between points L and S is ___.

Input whole numbers, such as 2.

(numerical numbers as expected!)

Answers

Answer:

(12,0)

Step-by-step explanation:

count up from -4 to 8, then the other coordinate is the same so it will stay

Joe has $150 in his saving account and saves $40 per month. Which equation represents the amount Joe has in his account after x months?

1. y=150+40
2. y=150x+40
3. y=40x+150

Answers

Answer: 3. Y=40x+150.

Answer  y=150+40 it equals $190

Step-by-step explanation:

Lucy wants to decorate the curved surface of a trash can that has a radius of 4 in. and a height of 12 in.

What is the area of the curved surface of the trash can she will need to decorate?


A trash can with radius 4 inches and height 12 inches.

Answers

12 in =30 cm

4 in = 10 cm

area of 1 circle= 3.14×10×10= 314 cm²

area of 2 circle= 314×2= 628 cm²

if u unfold the trash can the biggest surface(not the circle) will become a rectangle with two circles(628 cm²)

length of rectangle = circle circumference

= 2×3.14×10

=62.8 cm

area of rectangle= 62.8 × 30 = 1884 cm²

total area= 1884 + 628 = 2512 cm²

Answer:

2512 cm²

Step-by-step explanation:

A professional football field is 120 yards long and 53 yards wide. How far will you run if you go all the way around it?

Mrs. Payfer's desk is 3 feet by 2 feet. What is the perimeter of her desk?

What is the perimeter of a square with a side that measures 15 m?

Please answer quickly. I have ton more questions to do..
and please do N

Answers

1.346 yards
2.10 feet
3. 60 m

Answer:

1) 346 ft.

2)10 ft.

3)60 ft.

Step-by-step explanation:

1) the equation for finding the perimeter of a rectangle is P=2L+2W. so, P=2(120)+2(53). P=240+106. P=346.

2) The equation is P=2L+2W. P=2(3)+2(2). P=6+4. P=10

3) the equation for finding the perimeter of a square is P=4s. So P=4(15) P=60

Hope this helps!

im giving brainiliest

Answers

Answer:

The relationship between these 2 angles are that they are doubled when you look at them.

Step-by-step explanation:

between the 2 angles they are doubled

Please help me with this!

Answers

Answer:

I dont know if I can answer if I don't have more information then the question

I believe the answer should be D as they went to Supreme Court and lost in the Supreme Court and were forced to move (trail of tears)

SImplify:

(2m)^5

Please help if possible :)

Answers

Your answer should be 32m^5
(2m)(2m)
4m^2(2m)
8m^3(2m)
16m^4(2m)
32^5

2m x 2m
4m^2 x 2m
8m^3 x 2m
16m^4 x 2m
32^5

Hi, I need help. These are one-step equations.

Answers

Hello! :p

1. question: -7x = 63    Answer: x = -9

2. question: x + 8 = -15  Answer:  x = -23

3. question:   2/3x = 27    Answer:   exact form:   x = 81/2   decimal form:   x = 40.5 Mixed number form: x = 40 1/2

4. question:  x/9 = 5 Answer: x = 45

5.question: x + 2.6 = 1.7 Answer: x = -0.9

6.question: -8x = -56  Answer: x = 7

Hope this helps! Have a wonderful day! :)

8+8=16
9+9=18
16/2=8
18/2=9
9x2=18
8x2=16
16-8=8
18-9=9

Find the quotient. Express your answer as a simplified fraction. 3/10 divided by 3.8

Answers

Answer:

4/5



Step-by-step explanation:

3/10÷3/8

=(3×8)/(10×3)

=24/30

Simplifying 24/30, the answer is

=4/5

The value of the quotient of ''3/10 divided by 3.8'' as a simplified fraction would be 3/38.

Given that;

The expression is,

3/10 divided by 3.8

Now it can be divided as,

3/10 divided by 3.8

3/10 ÷ 3.8

3/10 × 1/3.8

3/38

Therefore, the value of the quotient as a simplified fraction would be 3/38.

To learn more about the fraction visit:

https://brainly.com/question/5454147

#SPJ3

The number of students in a school is about 13⁴. How many students does this expression represent?

Answers

Answer: 28561

In order to find the answer you need to multiply 13 four times creating the equation 13*13*13*13 which then gives you 28561

Solve for u.
9u + 10 ≥ 1

27 points

Answers

Answer:

u >= -1

Step-by-step explanation:

9u >= 1-10

9u >= -9

u >= -1

Answer:

u>= -1

Step-by-step explanation:

9u + 10 >= 1

9u >= 1-10

9u >= -9

Divide 9 on both sides

u >= -1

A community swimming pool is a rectangular prism that is 30 feet long, 12 feet wide, and 5 feet deep. The wading pool is half as long, half as deep, and the same width as the larger pool.

How many times greater is the volume of the swimming pool than the volume of the wading pool?

Enter your answer as a number, like this: 42
HELLLLPPPP PLEASEEEE

Answers

Answer:

The number of times greater than the swimming pool to the wading pool is 1/2. the wading pool is half as long as the swimming pool. the wading pool is 15 feet long, 12 feet wide, and 2.5 feet deep.

hope this helps!

If A-B=1, and 2A²+20=B³, find the value of A and B

Answers

A≈7.8 B≈5.2
Just replace a with b+1 and simplify

At the dealership where she works, Denise fulfilled 1/2 of her quarterly sales goal in January and another 5/12 of her sales goal in February. What fraction of her quarterly sales goal had Denise reached by the end of February?

Answers

Answer:

She has fulfilled about 91.6666 repeating

Step-by-step explanation:

If half of her sales were fulfilled in January, then that is 50% or 0.5. Then if you take 5/12 then it = 0.41666666, add the two decimals together and you have 0.916666 repeating. If you want to turn that into a fraction it would be 9/10 by rounding down due to the decimal.

Answer:

the answer will probably be around 1 / 12

Step-by-step explanation:

hope this helps! (if not then its okay)

It’s the top one so pls

Answers

Answer:

I think the answer is C im not sure tho

Step-by-step explanation:

Answer:

im just answering this so that the other one gets the best answer

Step-by-step explanation:

have a good day

If the sales tax is 7% on all purchases, how much must you set aside for sales tax on $300? Show your work.

PLS HURRY :))

Answers

Answer:

$21

Step-by-step explanation:

300 * 0.07 (the tax percent put into decimal form) = $21

David and Denise share n (total) pears in the ratio of 4:9.
a) how many pears does Denise have in terms of n=13?
b) If n=39, how many pears does Denise have? How many pears does David have?

Answers

Answer:

3???

Step-by-step explanation:

I don't know I divided I think its wrong i just need points

pls help !! will give brainilest

Answers

it’s a linear function so,

y = mx+b

b is 0.

m is rise/run, which is 6/3, which is 2.

so

y=2x


hope this helps!

Answer:

y = 2x

Step-by-step explanation:

the equation of proportional relationships are in the form y = mx, where m is the slope.

this means you need to solve the slope.

to find the slope, find 2 random points and do change in y divided by change in x.

for example, (3, 6) and (0, 0)

this would be (6 - 0)/(3 - 0) = 2

this means m = 2

so the equation is y = 2x

What is the least common denominator of the four fractions listed below? (50 points!)​

Answers

Answer:

100

Step-by-step explanation:

100^^cccffggggdfhhggfffft

Simplify 10 divide 5 + 3 x 2.

Answers

Answer:

d 8

Step-by-step explanation:

Answer:

8 answer ..

i hope it will help you

1. (blank)% of 50 shirts is 35 shirts?
2. 4% of (blank) days is 56 days?
3. 80% of (blank) games is 32 games?
4. 75% of (blank) peaches is 15 peaches?
5. at a shelter, 15% of the dogs are puppies, there are 60 dogs at the shelter how many are puppies?

ik that was a lot but please help!

Answers

1-75%
2-100 days
Not sure about the others
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