Mathematics High School

HELP PLSSS!!! ASAP I just want to make sure my answer is right ​

HELP PLSSS!!! ASAP I Just Want To Make Sure My Answer Is Right

Answers

Answer 1

Answer:

your answer is correct

but in the third line 4.5×0 is wrong

it's 4.5×1

Related Questions


A jar contains 4 blue marbles, 6 red marbles, 10 purple
marbles, and 5 green marbles. If you choose one marble,
what is the probability that it WON'T be green?
A
20/25
B
10/25
С
5/25
D
15/25

Answers

Answer:

A

Step-by-step explanation

I got the right answer

 A company makes steel rods shaped like cylinders. Each rod has a radius of 2 centimeters and a height of 60 centimeters. If the company used 54,259.2 cm3 of steel, how many rods did it make? Use 3.14 do not round your answer +Help me plz

Answers

Answer:

72 rods

Step-by-step explanation:

First, find the volume of each rod, using the formula V = [tex]\pi[/tex]r²h

Plug in pi, the radius, and height, and solve:

V = [tex]\pi[/tex]r²h

V = (3.14)(2²)(60)

V = (3.14)(4)(60)

V = 753.6

So, each rod has 753.6 cm³ of steel.

Divide 54,259.2 by this to find how many rods it will make:

54,259.2 / 753.6

= 72

So, it will make 72 rods.

Gabe needs to cut an 8-foot piece of plywood into 16 equivalent pieces for a fence.

Answers

Answer:

0.5 ft or 6 in

Step-by-step explanation:

Simply do 8/16, each piece is half a foot (6 inches) long

Answer:

6 inches.

Step-by-step explanation:

First, we know that 8 feet is equal to 96 inches.

96/16 = 6.

So 6 inches per fence post.

Hope this helps!

There are 645 students at Tech Middle School, and
20% of the students are th graders, How rising
Students are 7th graders? ?

Answers

Answer:

.20

Step-by-step explanation:

The word percent literally means "Out of 100". With that being said, 20% can be written as a fraction, mixed number or whole number as follows: 1/5 (fraction), 20/100 (mixed number) or .20 (whole number).

3. Adam bought 3 pens and 4 pencils for $4.25. Lily bought 2 pens and 6 pencils for $4.50. How much is a pen? a pencil?​

Answers

Make two equations
Let x = pen
Let y = pencil
3x + 4y = 4.25
2x + 6y = 4.50
Make both coefficients equal
(3x + 4y = 4.25) * 2
(2x + 6y = 4.50) * 3
6x + 8y = 8.5
6x + 18y = 13.5
Subtract both sides
-10y = -5, y = 0.50
3x + 4(0.50) = 4.25
3x + 2 = 4.25
3x = 2.25, x = 0.75

Pen = $0.75
Pencil = $0.50

Rectangle A has area 50 cm 2 and length 10 cm. The area of rectangle B is one-half the
area of rectangle A. The rectangles have the same length.
What is the width of rectangle B?

Answers

Answer:

2.5

Step-by-step explanation:

Area of A is 50 cm ^2

length of A is 10

Area of B is 50/2 cm^2 or 25cm^2

area for all rectangles is length * width

so area of B divided by length of b is width of b

25/10 = 2.5

width of b is 2.5

9b^2=16 solve using Quadratic

Answers

Answer:

[tex]9b^2=16\\b^2=\frac{16}{9} \\\b=\frac{4}{3}[/tex]

Answer:

±4/3

Step-by-step explanation:

9b² = 16

b² = 16/9

take square root of each side

b = ±4/3

Ellie bought 10 packages of cat food and 8 packages of dog food. Each package of cat food contained 9 cans, and each package of dog food contained 5 cans. How many more cans of cat food than dog food did Ellie buy?

Answers

well

10x9=90
8x5=40

90-40=50

What is the difference between the number of solutions for a two-step equation and for a two-step inequality

Answers

Answer:

A two-step equation is something like:

A*X + B = C

In this case, like in a linear equation, we have only one solution that can be found as:

A*X = C - B

X = (C - B)/A

In the case of a two-step inequality, we have something like:

A*X + B > C

Solving this we get;

A*X >  C - B

X > (C - B)/A

In this case, any value of X that is larger than  (C - B)/A is a solution, so in this case, we have infinite solutions.

That is the difference between the number of solutions for each case, in a two-step equation we have only one, while in the case of the inequality we have infinite.

Someone please help me, use a variable to represent the situation, and solve the equation using inverse operations.

The length of an average toucan is about two thirds the length of an average macaw. Toucans are
about 24 in. long.

Answers

Answer:

36 in

Step-by-step explanation:

T= toucan

M= macaw

T= 2/3M

T= 24

24= 2/3M

72=2M

36= M

Length of macaw be x

24=2/3(x)2x=72x=72/2x=36in

The number of guests, g, coming for dinner
is not 8

Answers

Answer:

g < 8

rip 5 days ago

Please answer correctly !!!! Will mark Brianliest !!!!!!!!!!!!!!

Answers

9:21 is the original ratio but the simplest is 3:7

plz help im lazy plzzzzzzzzzzz

Answers

Answer:

-5-7×4=-5-28=-33

........

Answer: -33

Step-by-step explanation:

1. -5 - 7(4)

2. -5 - 28

3. -33

If 25 percent of your classmates have cats, and your class has 20 students, how many students have cats? (I have to show my work)

Answers

Answer:

5 students.

Step-by-step explanation:

25% is a quarter of the amount, or 1/4. A quarter of 20 is 5, since 4 times 5 is 20. So 5 students have cats.

hello please help i’ll give brainliest

Answers

It’s B) Ayurveda. Ayurveda offers a complete system to live a long healthy life and it’s also called the science of longevity.

If the number of bacteria in a colony doubles every 27 hours and there is currently a population of 2,000 bacteria, what will the population be 54 hours from now?

Answers

6,000
starts at 2,000
27 hours: 4,000
54 hours: 6,000

R and S represent positive integers on a number line
and R< S. Which of the following could be the
positions of R and S?

Answers

Answer:

Step-by-step explanation:

Answer:

C

Step-by-step explanation:

S is greater than R and they say they are both postive so it has to be on the right side of zero on the number line

Megan is the manager of a computer shop she organises a sale with 18% off all tables Megan changes the price of own table from £389 to £330.98 has Megan changed the price probably

Answers

Answer:

this is easy. all you have to do is figure out what 18% of 389 is and then subtract that answer from 389. the easy trick i use is to make a fraction with the numerator being a question mark and the denominator being 389 (displayed below). then you would make a second fraction with 18 as the numerator and 100 being the denominator (displayed below). you would then multiply 389 with 18 and divide by 100 to get the numerator of the first fraction (which is 70.02). now you subtract 70.02 from 389 (being 318.98). this would mean that Megan has not done the math correctly.

Step-by-step explanation:

?/389 = 18/100

389 x 18 = 7002

100/7002 = 70.02

389 - 70.02 = 318.98

Seven friends share 3 bags of trail mix equally. What fraction of a bag of trail mix does each friend get? Each friend will receive of a bag of trail mix.

Answers

Answer:

Step-by-step explanation:

There are 3 bags to be shared among 7 people.

Therefore each person will get 3/7    bags.

I couldn't think of a way of explaining the question in terms of bags when I wrote my answer. Suppose you try this.

Weigh each bag separately.

Add the weights (or masses) together.

Divide by 7

Another way is to weigh each bag separately. There are three bags and seven people. Each person will get 3 parts of the total divided by 7.

This will solve the problem in a practical manner. Give the Brainliest to the other responder who did a much better job of explaining it than I have.

Answer:

[tex]\frac{7}{3}[/tex] or 2[tex]\frac{1}{3}[/tex] of a bag of trail mix

Step-by-step explanation:

To find the fraction of trail mix each friend will get, divide the number of friends by the number of bags of trail mix:

Since there are 7 friends and 3 bags of trail mix, the fraction will be [tex]\frac{7}{3}[/tex]

This can also be simplified to a mixed fraction, 2[tex]\frac{1}{3}[/tex]

So, each friend will receive [tex]\frac{7}{3}[/tex] or 2[tex]\frac{1}{3}[/tex] of a bag of trail mix.

In science class, Farah uses a graduated cylinder with
water in it to measure the volume of some marbles. She
drops in marbles so that they're all under water and
measures the height of the water.
After dropping in 4 marbles, the height is 10 ml
After dropping in 6 marbles, the height is 11 ml.
Here are your answers from the previous screen:
Before dropping in any marbles, the height is 8 ml.
Each marble increases the height by 3 mL.
What should be the height of the water after 13 marbles
are dropped in?

Answers

Answer:

47 mL

Step-by-step explanation:

Note each marble increases the height by 3 mL, and we start with 8 mL, so we multiply 3 by 13, and add it to 8

The volume of each marble is 0.5 ml. The volume after dropping 13 marbles is 14.5 ml.

Volume

The volume of an object is the amount of space occupied by a three dimensional object.

A graduated cylinder can be used to measure the volume of a cylinder. Given that After dropping in 4 marbles, the height is 10 ml and After dropping in 6 marbles, the height is 11 ml.

Hence:

Volume per marble = (11 ml - 10 ml) / (6 - 4) = 0.5 ml

The volume of each marble is 0.5 ml.

If the initial volume is 8 ml, after 13 marbles, height = (8 ml + 0.5 * 13) = 14.5 ml.

Find out more on Volume at: https://brainly.com/question/1972490

Given that x = 9.5 m and θ = 20°, work out AC rounded to 3 SF​

Answers

Answer:

AC ≈ 10.1 m

Step-by-step explanation:

Using the cosine ratio in the right triangle

cos20° = [tex]\frac{adjacent}{hypotenuse}[/tex] = [tex]\frac{BC}{AC}[/tex] = [tex]\frac{9.5}{AC}[/tex] ( multiply both sides by 9.5 )

AC × cos20° = 9.5 ( divide both sides by cos20° )

AC = [tex]\frac{9.5}{cos20}[/tex] ≈ 10.1 m ( to 3 sf )

Pls give answers to these I will mark branliest

Answers

Answer:

I can answer the first 5 for you :)

1: 1,019,536

2: 892,850

3:20,215,692

4:274,728

5:227,376

Have a great day!!!!

helpppp needed


tysm for everyone helping btw :)

i put points at 35 xx

Answers

Answer:

10ft.

Step-by-step explanation:

1yd = 3ft.

3yd = 9ft. + 1ft= 10ft.

Answer:

I think the answer is 3.04800

or just 10ft.

A regular polygon has

Answers

Answer:

angles that are all equal and sides that all have the same length

Step-by-step explanation:

Answer:

A polygon is any shape with at least three straight sides,

and angles. It can only have straight sides and has to be closed.

Step-by-step explanation:

A polygon is any shape with at least three straight sides,

and angles. It can only have straight sides and has to be closed.

Help me. Do not send links or fake answer if not I will report you. The photo will be above¡ Thanks♡​

Answers

Answer:

$0.00  $1.00    $1.50    $4.50

Step-by-step explanation:

Last night, Jasmine and her family went out for dinner. The questions below came up on their way to the restaurant or during the meal. Decide whether or not each question is a statistical question. Select all that apply.
●How far are we from the restaurant?
●How long will it be until we get there? ●Would you rather have burgers or pizza?
●How much should we leave for the tip? ●What was the most frequently ordered dish in the restaurant this evening?
●Did you like the pizza tonight?
●Which table's bill was the highest?
●How many people were sitting at each table this evening?​

Answers

A statistical question is a question where the data collected can vary.

Ex. Statistical - "How old are the students in my class?" The data can vary based on which student you ask.

The following questions are statistical:

●Would you rather have burgers or pizza?

●How much should we leave for the tip?

●Did you like the pizza tonight?

●How many people were sitting at each table this evening?

These questions can vary based on who you ask or where you look

I hope this was helpful! =)

Help! I’ll give brainliest

Answers

A AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA

Crazy I just saw your classmate with the same test I think lol A!!!!!!!!

I just need help graphing!

Answers

Answer:

solution is in attachment

hope it helps

You roll a dice. It is an even number. What is P(6/Even)?

A) 1/3
B) 1/6
C) 5/6

Answers

A) 1/3

There are 6 sides to a dice meaning only 3 can be even and only one can be 6 so 1/3

Can anyone help me with #3 and #4 and #6 please I will give brainlist!!

Answers

Answer:

3. 15.02

4. 84.05

6. 4,301

Step-by-step explanation:

I'm not too sure how to explain this, but those are the answers.

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