Mathematics Middle School

If Josh can read 18 pages in 40 minutes, how long will it take him to read 90 pages?

Answers

Answer 1

Answer:

18=40

90? 40×90=3600÷18=200 pages.

Answer 2

Answer:

It will take him 200 minutes to read 90 pages.

Step-by-step explanation:

Josh can read 18 pages in 40 minutes.

Ratio of pages to minutes = 18 : 40

Number of pages to read = 90

Minutes = x

Ratio of pages to minutes = 90 : x

The relationship is proportional

18 : 40 :: 90 : x

Product of extremes = Product of means

18x = 40*90

18x = 3600

Dividing both sides by 18

[tex]\frac{18x}{18}=\frac{3600}{18}[/tex]

x = 200

Therefore,

It will take him 200 minutes to read 90 pages.

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algebra 1 brainilest if correct and reported if not answered ty

Answers

Answer:

i dont see the image

Step-by-step explanation:

Solve the equation 3= d+2

Answers

Step-by-step explanation:

d=1

.................

d=1


Explanation: im built different

The net of a building block is shown below. What is the total surface area of the building block.

Answers

120 cm squared would be the answer.
The answer would be 120 :)

answer anyone?
help me, please

Answers

Answer:

5x2−7x−7

Step-by-step explanation:

Answer:

I'm pretty sure the answer is B) [tex]5x^{2}+x+3[/tex]

Step-by-step explanation:

basically you just combine the like terms, so 6x^2-x^2 is 5x^2 and so on. hope this helps!!!

Between 3 and 5 seconds, the elevator was moving at a rate of

Answers

Answer:

4 is the answer hope this helps

4 the elevator was a moving rate

I just need 1 more reason for the black text. Thanks!

Answers

Answer:

1: proportion means 2 ratio are equivalent

2: its also known as constant of proportionality

Step-by-step explanation:

give me brainlist pls

Based on the context in paragraph 4, fossil refers to _____.

Answers

fuol next time put the paraghpt too pls

Step-by-step explanation:

What number is 28% of 75?

Answers

Answer:

21

Step-by-step explanation:

.28 * 75

Answer:

21 there ya go

Step-by-step explanation:

can i get  brainiest?

help plsss omf this is hard (8th)

Answers

Answer:

(-2,5)

Step-by-step explanation:

Answer:

(-2,5)!!!!!!!!!

Step-by-step explanation:

Please help me!! Picture attached!!

Answers

1. 4/3 and 1 1/3 because they are equivalent to each other
2. 1 & 2/3 because it is only one third away and the others are two thirds away
3. 1 & 1/2
4. 3
5. 1

Answer:

1. 4/3, and 1 & 1/3   2. 1 & 2/3    3. I D K.    4. 3

5. 1

Step-by-step explanation:

1. because 4/3 is the same as 1 & 1/3, they are the same because if you take the 4 and make it a 3, it is 1 whole, and then you put 1/3 at the end, because the is still a left over 1/3.    2. I know this because 2/3 is bigger than 1/3, and 4/3 is equal to 1 & 1/3.

Hope this helped,  I am so sorry, I couldn't figure out 3! : (

please help my guys plaese

Answers

Answer: I think it’s A

Step-by-step explanation:

Not sure though

Answer:its C

Step-by-step explanation:

plssss help me with this thx im not good at math

Answers

The answer is c 25 minutes btw hope you have a wonderful day

Please help me in this math problem

Answers

The answer is 6 I had this problem on my test..It was correct..

Screen-printing a batch of shirts requires 2 minutes per shirt in addition to 4 minutes of initial set-up time. If it takes 80 minutes to screen-print a batch of shirts, how many shirts are in the batch?

38

4

40

20

Answers

38 is the correct answer because 80-4=76 then divide that by 76/2 give you 38

What is 9 + 10 ____________________________________________

Answers

Answer:

21

Step-by-step explanation:

LOL

19————————————————:)

2/5 divided by 1/4 as a fraction

Answers

Answer:

Step-by-step explanation:

2/5 divided by 1/4 is which (2/5)/(1/4) is  equal to fraction 8/5

The given statement "2/5 divided by 1/4 as a fraction"

It can be written as in mathematical form as (2/5)/(1/4)

To solve 2/5 divided by 1/4 as a fraction,

Multiply the first fraction by the reciprocal of the second fraction.

The reciprocal of 1/4 is 4/1.

So, we have (2/5) ÷ (1/4) = (2/5) x (4/1).

Multiplying the numerators and denominators gives us

(2x4) / (5x1) = 8/5.

Therefore, 2/5 divided by 1/4 is equal to 8/5.

Learn more about the multiplication visit:

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Kiley and her parents traveled to visit her grandmother. They drove 24.3 miles from their house to the airport in hour. At the airport, they exited the car and walked for hour to the waiting area by the gate to board their plane. Their walk covered 1.2 miles. From the waiting area, they walked another 0.1 mile to board the plane. The plane left the gate 45 minutes after they arrived at the waiting area. The plane flew 346 miles in hours. After the plane landed, Kiley and her parents walked for 30 minutes, covering 1.1 miles, before they found a cab. It was a 15-minute cab ride to get to Kiley’s grandmother’s house, which was 12.3 miles away.
Answer the following questions about kileys trip. All questions are written in terms of an average rate. Assume that an average rate includes the time that kiley is at rest.
In this task you will write the ratio of miles to hours for each leg of kileys trip. You will then express the ratio as a decimal number. Next you will find the unit rate in miles per hour for each leg of the trip.

2. At the airport the walk from the car to the waiting area by the gate

Answers

Answer:

The answer is 6.41

Step-by-step explanation:

you just add up all the distances and the time then you divide and then you got your answer.

hope i helped you!

plz help
in this experiment, you will use a track and a toy car to explore the concept of movement. You will measure the time it takes the car to travel certain distances, and then complete some calculations. In the space below, write a scientific question that you will answer by doing this experiment.

Answers

Answer:if you need a question you can say “ how far did the toy car move? “

Step-by-step explanation:

Answer: how far did the car move .

Please help me tysvm!

Answers

Answer:

Your Welcome :)

Step-by-step explanation:

add (2x+5) + (3x-7)
plsssssss SBUIAXSBADJASN

Answers

2x+3x= 5x
5-7= -2

so its 5x-2 since all like terms are added

need help plz i show me how to do it plz :)

Answers

I’m pretty sure you multiply the sides your you find the formulas for the hight and width
The formula for the surface area of a rectangular prism is SA= 2( (width•length)+(height•length)+(height•width) )

You deposit $575 into a savings account that earns 4.6% interest compounded annually. Find the new balance of the account after 4 years. Round your answer to the neartest cent.

You earned a simple interest of $375 after 30 years. If the account started with $500, what is the rate?

You deposit $575 into a savings account that earns 4.6% interest compounded annually. Find the new balance of the account after 4 years. Round your answer to the neatest cent.

Answers

10580 is the answerrrrre

Find the equation of the line that is perpendicular to 5x-6y=5, and passes through Point A (-1,1).

Express the equation in standard form.

Answers

The answer is 489.2
Hi! The expression is already in standard form.

What are the coordinates of pont P on the coordinate grid below?


Answers

Answer:

It would be (-5,3). Hope this helps!

Step-by-step explanation:

Start from zero on the x line and count until you get to the where the P is, then start from zero and count on the Y line till you get to the P.

Happy Paws charges $19.00 plus $3.50 per hour to keep a dog during the day. Woof Watchers charges $11.00 plus $4.75 per hour. Complete the equation and solve it to find for how many hours the total cost of the services is equal. Use the variable to represent the number of hours.

The equation is Blank = Blank .

The total cost of the services will be equal at
Blank hours.

Answers

Answer:

7 hours

Step-by-step explanation:

It will be 7 h o u r s

Help Please! Brainliest if Correct

Answers

Answer:

1/243, hope this helps

Here I go hope this helps

Answer quick and accurately!

Answers

Answer:

umm im being rushed...

Step-by-step explanation:

It's the last one (The distance between D and A)

would U like me to explain??

no wait.... it's ether C or D

Answer:

Your answer is

a

Step-by-step explanation:

Figure JKLM is similar to figure PQRS which proportion must be true for these figures

Answers

Answer:

D

Step-by-step explanation:

THEY LINE UP

answer D they line up there u go have a great day

A mine worker discovers an ore sample containing 500 mg of radioactive material. It is discovered that the radioactive material has a half life of 1 day. Find the amount of radioactive material in the sample at the beginning of the 7th day.

Answers

Answer:

7.8125 or 7.8

Step-by-step explanation:

[tex]gm=(1/2)^{n-1}[/tex]

[tex]gm=500 (1/2)^{ 7- 1} \\gm= 500 (1/2)^{6}[/tex]

= 7.8125 or 7.8

The amount of radioactive material in the sample at the beginning of the 7th day is 3.906 milligram.

What is Half life of an Element?

Half life of an element is the time taken by a radioactive substance to break down into half the quantity of the initial quantity.

In other words, we can say that it is the time for an element to disintegrate half of it's atoms.

Given that,

Half life of radioactive material is 1 day.

Initial amount of the substance = 500 mg

At the beginning of the first day, there will be 500 / 2 = 250 mg os substance.

Taking the first term as 250 and the common ratio as 1/2, we can consider this as a geometric sequence.

nth term of a geometric sequence = a rⁿ⁻¹, where a is the first term and r is the common ratio.

At the beginning of seventh day,

Amount of radio active substance = 250 (1/2)⁷⁻¹ = 3.90625

Hence the amount at the beginning of seventh day is 3.906.

Learn more about Geometric Sequence here :

https://brainly.com/question/13008517

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HELP I NEED RIGHT ANWSER QUICK!!!

Answers

What’s the question?????

Answer:

Make soooo much sense

Step-by-step explanation:

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