Mathematics Middle School

There is 2 parts to this question
The first one is number 1

There Is 2 Parts To This QuestionThe First One Is Number 1
There Is 2 Parts To This QuestionThe First One Is Number 1

Answers

Answer 1

Answer:

1. 3 students

2. 1/10

Step-by-step explanation:

if there are 30 kids in the class, and 2/5 are in band that means 12 students are in band

30÷5 =6

6×2= 12

if 1/4 of those 12 play the saxophone, then 3 of those students play the saxophone.

12÷4= 3

3 is 1/10 of 30, which gives you the answer to the second question.

Related Questions

A retailer buys an item from a wholesaler and marks up the price by 20%. When time passes and the item is not sold, he discounts the item by 25%. The expression below represents the discounted price of the item.

p+20%p−25%(p+20%p)

Which of the following statements is true?

A: The discounted price is p−25%p, indicating that the retailer will lose 25% of his investment.
B: The discounted price is p−25%p, indicating that the retailer will lose 75% of his investment.
C: The discounted price is p−10%p, indicating that the retailer will lose 10% of his investment.
D: The discounted price is p−10%p, indicating that the retailer will lose 90% of his investment.

Answers

Answer:

dvfn,jhjhmgfgf

Step-by-step explanation:bvcxvbnnbvc

It’s b I answered this not too long ago.

The table shows the boiling point of several liquids in degrees Fahrenheit (°F) or degrees Celsius (°C). Liquid Boiling Point Aniline 363.8°F Iodine 184.3°C Petroleum 410°F Petrol 95°C The formula F=1.8C+32 can be used to convert between degrees Fahrenheit and degrees Celsius. What is the difference, in degrees Celsius, between petroleum's boiling point and iodine's boiling point?

Someone please help!

Answers

Answer:

25.7C

Step-by-step explanation:

Petrol 410F

Iodine 184.3C

Convert the boiling point of petrol to celcius

Subract 32 from the farenheit reading and multiply by 5/9 to get celcius reading

(410-32) x 5/9 = 210C

210C - 184.3C = 25.7C

100 POINTS!!! BRAINLYIST 5 question
Javier has a model of a cone with a radius of 3 inches and a height of 10 inches. Javier increased his model’s volume by doubling its radius and height. What is the volume of the larger cone in cubic inches?

Answers

Answer: 113.04 cubic inches!

Step-by-step explanation:

The volume of the larger cone is 113.04 cubic inches. This can be found by using the formula for the volume of a cone: V = (πr2h)/3. Plugging in the new radius (6 inches) and height (20 inches) gives us V = (3.14*62*20)/3 = 113.04.

40 POINTS PLEASE HELP, HURRY

Which graph represents the equation y equals one half times x plus 2?

graph of a line passing through the points negative 2 comma negative 2 and 0 comma negative 1
graph of a line passing through the points negative 2 comma 0 and 0 comma 1
graph of a line passing through the points negative 2 comma negative 3 and 0 comma negative 2
graph of a line passing through the points negative 4 comma 0 and 0 comma 2

Answers

Answer:

Answer: graph of a line passing through the points negative 2 comma 0 and 0 comma 1

A net of a rectangular pyramid is shown in the figure.
What is the surface area of the pyramid?

147.2 in2
294.4 in2
73.6 in2
105.2 in2

Answers

Answer:

its A

Step-by-step explanation:

I had the same question and i got it right?

Lily has to go to Antarctica for a science school field trip. A ticket to Antarctica costs $4,689. Supplies for the trip cost $9,000. She has $20,000. How much will she have left over?

Answers

To calculate how much Lily will have left over after buying the ticket and supplies, we need to subtract the total cost of the ticket and supplies from the amount of money she has.

Total cost of ticket and supplies: $4,689 + $9,000 = $13,689

Amount left over: $20,000 - $13,689 = $6,311

Therefore, Lily will have $6,311 left over after buying the ticket and supplies for her trip to Antarctica.
She will have $15,689 left

Mary got 14 pets on Monday. On Tuesday,She got 32 more. On Wednesday,she got 43 more. On Thursday she got 86666 more. How many pets does she have now?

Answers

Answer:

she has 86755 pets

Step-by-step explanation:

She has 86755 pets now

Enter a numerical expression for the word expression. The difference between 43 and 24 The numerical expression is?

Answers

Answer:

Step-by-step explanation:

43 - 24

Answer:

43-24=19

Step-by-step explanation:

Difference means subtraction

PLEASE HURRYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYY

Answers

D should be the correct answer :)

Which graph represents a proportional relationship?
A)
B)
C)
D)

Answers

Answer:

A

Step-by-step explanation:

how do you solve 2cosxarccosdx: (1) 01 + 2 cosx

Answers

2
cos
x
arccos
x
+
2
cos
x
2
c
o
s

a
r
c
c
o
s

+
2
c
o
s

Help Please I don't know what to do.

Answers

Answer:

y=4

y=7 (2,7)

y=10 (3,10)

y=-2 (-1,-2)

Answer:

Attached is the same chart. I inputted the values i the blank spaces

20 pts!! Find the total surface area of this prism.



___ square meters

Answers

Answer:

38m^2

Step-by-step explanation:

We are solving the surface area of a rectangular prism that has been cut in half diagonally.

Our equation for this is
S = 2(lw + lh + wh)
Plug in our info
S = 2(10(1.5) + 10(2) + 1.5(2))
Work inside parentheses
S = 2(15 + 20 + 3)
S = 2(38)
S = 76
Our original surface area would be 76 if this were a regular rectangular prism, but its not! It's cut in half.
So, 76/2 is 38.

Find the quotient.

48 a³bc² ÷ 3 abc

Answers

48a³bc²:3abc=(48:

3) a³-¹ c²-¹=16a²c

The cost of 8 T-shirts and 3 jackets is $135. The cost of 7 T-shirts and 5 jackets is $149.
what is the cost of one T-shirt and one jacket

Answers

Answer:

13

Step-by-step explanation:

What is the rate change of this function

I have an idea of what it is, but I would like to make sure I'm correct.

Answers

Answer:

0.5

Step-by-step explanation:

divide the change in y (output) by the change in x (input)

Ms. Patel is making a long paper chain to hang over the bulletin board in her classroom. She plans to use at least 25 paper strips to make the chain.
Let p represent the number of paper strips that Ms. Patel might use. Which inequality models the story?

Answers

Closed circle on 25 with an arrow to the right
Here is the inequality and number line :)

You found the area of the garden in Part A. Explain briefly, without doing any calculations, how you would find
5/6 of this area.

Answers

Answer:

To find 5/6 of the area of the garden, you would divide the area by 6 and then multiply the result by 5.

Please show work for both questions

Answers

Answer:

13:

28=4(x+3.3)

7=x+3.3

3.7=x

Step-by-step explanation:

14:

The amount of money Tony spent in buying a pack of notebooks is $4.89.

Given the following data:

Cost of calculator = $45.87.

Quantity of notebooks = 3 packs.

Quantity of calculator = 1.

Total cost = $60.54 .

To determine the amount of money Tony spent in buying a pack of notebooks:

n = $4.89.

For 13 just sub in 28 for the x and solve it then times it by 4 because squares are always same size to get the perimeter

if u have w rizz and a top g please help me with dis

Answers

Answer:

Step-by-step explanation:

1. Break it down by shapes, the first shape and the second shape

          Notice:

The first shape is a rectangle.

The second shape is a longer rectangle.

2.  The area of the first shape is:

          7 x 6 = 42 (ft2)

    The width of the second shape is:

         10 - 6 = 4 (ft)

     The area of the second shape is:

        15 x 4 = 60 (ft2)

       

       

The answer on the bottem of me is certainly correct

Please help! Coins and brainliest!

Answers

Answer:

Step-by-step explanation:

Water is filled to a height of 2.5 m in a container lying at rest on a horizontal surface as shown in the figure. The bottom of the container is square shaped of side  

3

​

m and its top is open. There is a very small hole in the vertical wall of the container near the bottom. A small cap closes the hole. The hole gets opened when pressure near the bottom becomes more than 4×10

4

 pascal.

a. What minimum acceleration can be given to container in the positive x-direction so that the cap will come out of the hole? Assume water does not spill out of container when the container accelerates.

b. Find the velocity of efflux as soon as the container starts moving with the acceleration calculated in part

Answer: 5 and 1

Step-by-step explanation:

Whats the surface area of this figure?

Answers

9+9+33+33+33+66+66+55+48+48+88 = 488 in^2

I need help i have been stuck on this for a longggg timee

Answers

87.5% because if u divide 200 in half its 100 so if u divide 175 in half its 87.5 i

Answer:

A: is yes he did because he got 87.50% back off the retail price he sold it for
question B:  60%

Step-by-step explanation:

question B: 3 out of 5 is 60% so she made a 60% increase

HURRY PLEASE WILL GIVE BRAINLIEST!!Tickets at a show were $4 for students and $7 for adults. On the first night, the show sold 578 tickets and collected $3365 in sales.
The equations below a = adult tickets and s = student tickets

4s + 7a = 3365

s + a = 578
How many student tickets were sold? How did you get your answer?

Answers

Step-by-step explanation:

We are given two equations:

4s + 7a = 3365 (equation 1)

s + a = 578 (equation 2)

where s is the number of student tickets sold, a is the number of adult tickets sold, and the numbers are the prices of the tickets.

We want to find the value of s, the number of student tickets sold.

We can use equation 2 to solve for one of the variables in terms of the other. Solving for a, we get:

a = 578 - s

Substituting this into equation 1, we get:

4s + 7(578 - s) = 3365

Expanding and simplifying, we get:

4s + 4046 - 7s = 3365

-3s = -681

s = 227

Therefore, 227 student tickets were sold. We got this answer by first using equation 2 to express one of the variables in terms of the other, and then substituting this expression into equation 1 to obtain a single equation in one variable, which we could solve for s.

HURRY PLEASE WILL GIVE BRAINLIEST!!Tickets at a show were $4 for students and $7 for adults. On the first night, the show sold 578 tickets and collected $3365 in sales.

The equations below a = adult tickets and s = student tickets

what is 25/100 plus 1/8

Answers

Answer:

3/8

Step-by-step

Answer:

3/8

Step-by-step explanation:

We can start by simplifying 25/100. We can do this by pulling out common factors (or the GCF) of the numbers.

For 25, the factors are

1, 5, 25

and for 100, they are

1, 2, 4, 5, 10, 20, 25, 50, 100

We can see that 25 is a common factor for each, so we can separate it out:

25(1)/25(4)

1/4

Now we have 1/8. We can find the common denominator by looking at common multiples of each number.

for 4, the denominator of 1/4, we have

4, 8, 12

and for 8, the denominator of 1/8, we have

8, 16, 24

We can see straightaway that 8 is a common multiple between the two, and so we can equalize to that:

1(2)/4(2) + 1/8

2/8 +1/8 = 3/8

If you liked that answer, please mark brainliest!

if you helped me it would be awesome

Answers

Answer:

y = 1.05x

Step-by-step explanation:

y represents the total cost while x represents the quantity so x would be multiplied by the original cost of 1 to find the total cost/y.

Answer:

y=1.05x

Step-by-step explanation:

The equation that represents the total cost, y, of x yogurts at the store is:

y = 1.05x

This is because the cost of one yogurt is $1.05, and the total cost of x yogurts is equal to the cost of one yogurt multiplied by the number of yogurts purchased, which can be expressed as:

y = $1.05x

Therefore, the equation that represents the total cost, y, of x yogurts at the store is y = 1.05x.

Help me please I don’t understand

Answers

Answer:

B. 960 units²

Step-by-step explanation:

find the area of each surface

the area for a triangle is 1/2(b×h), and there are q triangles here, so just do b×h

y×h = 24×16 = 384

next, find the area of the bottom and sides of the prism.

x×z = 20×9 = 180

180 × 2 = 360

z×y = 9×24 = 216

finally, add all of those together

384+360+216 = 960 units²

The answer is B or 960 units

In a carnival drawing, a green ticket wins $1, a yellow ticket wins $5, and a blue ticket wins $10. There are 100 green tickets, 25 yellow tickets and 5 blue tickets. In simplest form, what are the odds against winning less than $10?
A. 1:4
B. 1:5
C. 1:10
D. 1:25
(Explaination needed lol)

Answers

Answer:

D

explanation:

add 100 and 25 = 125

you get 5/125

simplify it, you get 1:25

give brainlist if you can, and if it helps

Answer:

1:25

Step-by-step explanation:

What is the volume of a rectangular prism with a length of twenty and one-fourth feet, a width of 14 feet, and a height of 12 feet?

five hundred twenty-six and one-half ft3
1,053 ft3
1,701 ft3
3,402 ft3

PLS ANSWER ASAP

Answers

Answer:  3,402 FT3

Step-by-step explanation:

Volume = length x width x height.

20.25*14*12  = 3402


As for the 20.25 i got it from converting the 20 1/4 to whole number to make it simpiler




ez math

Given the dimensions of rectangular prism as 20.25ft, 12ft, and 14ft the area is given as d) 3402 [tex]ft^3[/tex].

A rectangular prism is a polyhedron with two congruent and parallel bases. It is also called a cuboid. The volume of the cuboid is the product of the three dimensions.

Volume of rectangular prism is given by:

Volume  = length * breadth * height

Given in the question,

volume of rectangular prism = lbh

where,

l = length

b = breadth

h = height

dimensions of rectangular prism are as follows:

length = 20.25ft

breadth = 12ft

height =  14ft

Volume = 20.25 * 12 * 14 = 3402 [tex]ft^3[/tex]

Learn more about rectangular prism here

brainly.com/question/32444543

#SPJ2

Brandon has 6 eggs he needs 2/3 of the eggs to make an omelet how many eggs does he need should your answer be greater than 6 or less than
PLEASE HELP

Answers

He should have 4 eggs.

2/3 times 2/2 is 4/6

So two over three is equal to four over six


Answer:

Step-by-step explanation:

He needs 4 eggs and goodluck!

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