Mathematics Middle School

On Monday, water was pumped out of the pool at a constant rate, starting at 12:00 p.m.

At 12:15 p.m., the water in the pool was 45 inches deep.

At 12:35 p.m., the water in the pool was 41 inches deep.


Part A - By how many inches does the depth of the water decrease each minute?

Answers

Answer 1

Answer: Every ten minutes the water decreases by two, so you would divide 2/10, which would be 0.2, meaning the water decreases 0.2 inches per minute.

Answer 2

Answer:

so every 20 minutes it goes down by 4 inches so 20x-4y

Step-by-step explanation:

20x-4y means every 20 minutes it goes down 4 inches

i just did this for someone lol

Related Questions

PLEASE HELP, THE QUESTION IS IN THE PICTURE. I NEED HELP OR IM GOING TO FAIL

Answers

Answeruhhh i cant see that

Step-by-step explanation:

Answer:

it is P

Step-by-step explanation:

ASAP Please answer!!! TY

Answers

the shirts are 12-3=$9 after the discount. the jeans are 19-3=$16.

3*9+2*16=27+32=$59.

Which of the following shows how to use the Distributive Property to find 3 × 819?
A. 819 × 3 = 2,457
B. 3 × (8 + 1 + 9) = 3 × 17 = 51
C. 3 × (800 + 10 + 9) = 2,400 + 30 + 27 = 2,457
D. 3 × (800 – 90 – 1) = 2,400 – 270 – 3 = 2,127

Answers

Answer:

it is B

Step-by-step explanation:

don't really know how to explain just know

type of brownie
eggs
water
oil
fudge-like
2 eggs
14cup
12cup
cake-like
3 eggs
14cup
12cup


What amounts of eggs, water, and oil would you need for 2 batches of fudge-like brownies?


What amounts of eggs, water, and oil would you need for 3 batches of cake-like brownies?



Which travels faster: a car that travels 6 miles in 10 minutes at a constant speed, or a train that travels 6 miles in 8 minutes at a constant speed? Explain how you know.

Answers

Answer:

for the fudge like you would need for 2 batches 2 eggs 28 cups of water and 24 cups of oil

for the cake like brownies you would need 9 eggs 42 cups of water and 36 cups of oil

hope this helps please give me brainliest:))

Step-by-step explanation:

Have a great day!!
Have a great day!!

HELP ASAP IM SO CONFUSEDDD :((((


Sally has 5 cards. Max has 5 cards. The teacher, Mr. Mark, does not allow cards in his class. Mr. Mark took the cards and put them in his office. Now how many cards do Sally and Max have all together?

Answers

If he took them away you are subtracting. They both had 5 cards so that means if the teacher took them away they have 0 now
Now Sally and Max make a plan to sneak into Mr. Mark’s office to retrieve the cards. Once this transaction is completed they will have a combined total of 10 cards stolen back from Mr. Mark.

There are 90 books on 5 shelves, how many books are there on 14 shelves? *

Answers

90/5=18
18 books per shelf

18*14=252
252 books on 14 shelves

There are 90 books on 5 shelves, there are 252 books on 14 shelves.

Algebraic word problems are problems that require you to translate statements into a mathematical equation and then solve those equations.

Word problems need skill in converting verbal to mathematical language. There is an unknown number in every word problem.

From the given information,

there are 90 books on 5 shelves.

i.e.

90 books = 5 shelves

Let use x to indicate the unknown books.

x books = 14 shelves

∴

To determine the number of books on 14 shelves, we have:

[tex]\mathbf{x = \dfrac{90 \ books \times 14 \ shelves }{5 \ shelves}}[/tex]

x = 252 books

Therefore, we can conclude that the number of books on 14 shelves is 252 books.

Learn more about word problems here:

https://brainly.com/question/23542499?referrer=searchResults

im very unsmart so i beg

Answers

Answer:

9x + 27 is = 9(x+3)9+9x is = 9(1 + x) 9(x-1) is = 9x - 9

Step-by-step explanation:

9x + 27 = 9(x + 3)

9 + 9x = 9(1 + x)

9(x - 1) = 9x - 9

PLEASE MAKE ME BRAINLIEST I NEED POINTS FOR MY HOMEWORK

Find the area.
A. 48in^2
B. 84in^2
C. 90 in^2
D. 157,500in^2

Answers

C: 90 inches
Trapezoid: 7+15/2*4=44
Triangle: B*H/2—>5*4/2=10
Square: 6*6=36
44+10+36=90

Answer:

C) 90 in^2

Step-by-step explanation:

the other person above said exactly what i did too to get the answer above... and im doing the quiz too =w=

also if you need to know one answer that is obviously not the answer... the obvious wrong answer is D) 157,500 in^2... its way, WAY too big for it to be the answer

Hope this helps

∞ΩCreator WΩ∞

You purchase a car using a $23,000 loan with a 4% simple interest rate. Suppose you pay the loan off after 5 years. How much interest do you pay on your loan? (Please show your work)

Answers

Answer: This is how you solve it like an example

Step-by-step explanation:

Calculating interest on a car, personal or home loan

Divide your interest rate by the number of payments you'll make in the year (interest rates are expressed annually). ...

Multiply it by the balance of your loan, which for the first payment, will be your whole principal amount.

Answer: $4,600
Explaination:???

Which pair of measurements is not equivalent?
A. 4 tons, 6,000 lb.
B. 5 lb., 80 oz.
C. 160 oz., 10 lb.
D. 14,000 lb., 7 tons

Answers

Answer:

A

Step-by-step explanation:

1 ton is equal to 2,000lbs. So if you multiply 4 and 2,000 you should end up with 8,000lbs, not 6,000lbs.

About how many feet does a team of athletes run in a 1,600 meter relay race

Answers

5249.344
so about 5,250 feet

Write an equation, in point-slope form, of the line that passes through the point (4, -3) with a slope -7.

Answers

Answer:

point-slope form:

y - 10 = -4(x - -2)

y - 10 = -4(x + 2)

---

slope-intercept form:

y - 10 = -4x - 8

y = -4x - 8 + 10

y = -4x + 2

Step-by-step explanation:

Need helpp fastt plss will give brainliest to who is correct plss helpp
EXPLAIN HOW YOU GOT YOUR ANSWER PLS !!!!!!

Answers

Answer:

6,400

Step-by-step explanation:

d=16t^2

t=20

Replace t with 20 because 20 = second

d=16(20)^2

d=16(400)

d=6,400

Massimo has $90 in the bank. Every time he rides the bus he spends $42.50. Write and solve an equation that Massimo can use to see how many times he can ride the bus. Let r, indicate how many times he can ride the bus.

Answers

Answer: x=number of rides

36 rides

Step-by-step explanation:

The answer to the question is 36

4(3n+2)-2(9n-7)
can yall help me?
it is 14 points

Answers

Answer:

4(3n+2)-2(9n-7)

12n+8 -18n+14

-6n+22

Step-by-step explanation:

Please help me with this

Answers

Answer for1 is y=2/3x-2

2 is y= -3/-2 +3
4 is -1/2x-3

A drill is used to dig down into the earth. After 2 hours, the drill is 12 meters below the surface. After 5 hours, the drill is 30 meters below the surface. Which equation represents the depth of the drill in meters, y, after ​x hours of drilling?A line passes through the origin and (4, 5). Which point is also on the line?

Answers

Answer:
6y = x
Step-by-step explanation:
All that equation is saying is that for every 1 hour drilled (x), 6 meters (y) are drilled.
y = distance in meters
x = time
12y = 2x
12y/2 = 2x/2
6y = x
30y = 5x
30y/5 = 5x/5
6y = x

Lmk if I’m wrong

Answer:

x(6) = y for the first one

seccond one   (2,2.5) for example

Step-by-step explanation:

first one: so if u plug in 5 for x

5(6)= 30

What is the remainder of 16 divided by 3? Pls give a explanation for brainlest.

Answers

Answer:

5.3 16 divided by 3 so 3 can go into 16 five times so you would have 5 with a remainder of 1 bring down the 0 and you would get 10 and 3 goes into ten 3 times and 10-9 is 1. It is repetitive the real answer you would get is. 5.33333333 and so forth so the short answer would be 5.3

Step-by-step explanation:

Hoped I helped! Im Eve btw. Have an amazing day and consider marking this brainliest if you do thank you in advanced!

Answer:

3 remainder of 1

Step-by-step explanation:

What is the answer to 4-4+4-5+5/1

Answers

Answer:

4

Step-by-step explanation:

5/1=5

4-4+4-5+5=4

4 - 4 + 4 - 5 + 5/1 = 4

Alani receives a collection of coins from her mother as a gift. She wants to start collecting coins. She
projects the total number of coins she believes she will own over the next 5 years and graphs the
results.
The graph shows the relationship between the number of
coins Alani believes she will own and the amount of time
she thinks it will take to acquire them.

Complete the table using the data from the graph.
Year
Number
of Coins





()



()




()



3 6
()



()
0 0
1 2
2 4
What is the recursive formula that represents the total number of coins for the nth year if Alani keeps
collecting coins at the same rate?

What is an explicit formula that represents the situation?

What is the domain of ()?

Answers

I would just go with ur guts

A ___________ represents a relationship between two quantities. Select all that apply.

Answers

Answer: correlation

Step-by-step explanation:

Answer:

correlation

Step-by-step explanation:

What are the coordinates of point A?



(8, –6)

(–6, 8)

(–5, 7)

(7, –5)

Answers

Answer:

(7,-5)

Step-by-step explanation:

you run 7 and go down 5

(7,-5)


Your answer is the last option available, which is (7,-5).

Shawntell is training for a relay race. She ran 2000 feet every day for 6 days.
How many yards did Shawntell run?

Answers

Answer:

12,000

Step-by-step explanation:

2000*6 is 12000

Hope this helps plz hit the crown :D

Please help will give brainliest

Answers

Answer:

5.4

Step-by-step explanation:

the answer is 5.4

Explanation:
3 is 3/4 of 4. this means the figure on top is 3/4 the size of the figure on the bottom. so x = 3/4(7.2)
3/4 is equal to .75, so if you multiply 7.2 by .75 (multiplying it by 3/4), you get the measure of x. in this case, x = 5.4
i hope this helps you in the future! :)

In which excerpt from Holes does the author develop the character of Stanley through what he thinks and what is 8X8

Answers

Answer:

B)He smiled. It was a family joke. Whenever anything went wrong, they always blamed Stanley's no-good-dirty-rotten-pig-stealing-great-great-grandfather.

Step-by-step explanation:

8x8 is 64

8x8 equals 64 I don’t the the answer to the book Holes

helpp ill give brainliest

Answers

Answer
h=-9

hope this helps and have a wonderful day :)

Please help, correct answer gets brainiest incorrect/trolling is reported.

Answers

Answer:

5

Step-by-step explanation:

Rip

The answer is 5 hope this helps

what does 1/7 estimate to 0,1/2,1

Answers

Answer:

Estimating sums and differences of fractions to the nearest 1/2 · Fractions < 1/4 are rounded down to 0 · Fractions ≥ 1/4 and ≤ 3/4 are rounded to 1/2 · Fractions > 3

Step-by-step explanation:

Answer:

Well, if you have 1/7 and you can round to 0,1/2 or 1 and sense Ur fraction is less than 4 that means you would round to 0

Step-by-step explanation:

need help and need a someone the answer how

Answers

Answer to #1 : C) 3x + 1

Answer to #2 :

I don't know the answer to #2

The difference of the equation is always 1 for me.

1.c but two you just replace the numbers with the equation

A 6-pack of Sprite costs $7.70. How much would an 18-pack of Sprite cost if the costs are proportional?
A. 13.86
B. 14. 40
C. 11.55
D. 23.10

Answers

Answer:

6 pack = $7.70

18 pack=$23.10

Answer:

Step-by-step explanation:

d,

7.70 * 3 = 23.10

because 6 goes into 18 ,times.

or 7.70+7.70+7.70 = 23.10 so D

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