Mathematics High School

Kelly sent packages to her 4 cousins. The
weight of each package was between
12.56 ounces and 15.4 ounces.
Which of the following could be the total
weight of the packages that Kelly sent?

Answers

Answer 1

Answer:

c

Step-by-step explanation:

got it right

Answer 2

Step-by-step explanation:

the total weght could be 15,4_12,56=2,84

Related Questions

easy math question ?
pls help

Answers

Answer:

I believe it is C

Step-by-step explanation:

The opposite of a negative is a positive so its C I think

solve -4 (h - 2) = 8

Answers

Answer:

h=0

Step-by-step explanation:

-4(h-2)=8

/4         /4

 h-2=-2

    h=0

Hey Btw I strongly reccomend you use photomath for your math classes.

Answer:

[tex] \frac{ - 4(h - 2}{ - 4} = \frac{8}{ - 4} \\ h - 2 = - 2 \\ h - 2 + 2 = - 2 + 2 \\ h = 0[/tex]

PLEASE HELP! 15 POINTS TO BRAINLIEST!!!

drag each equation to show if it could be a correct first step to solving the equation 3(x +8)=42



Answers

first one no second one no third one no frouth no fifth yes last one no

Find the length of the missing side

Answers

Answer:

C

Step-by-step explanation:

Using Pythagoras' identity in the right triangle

c² = 4² + 5² = 16 + 25 = 41 ( take the square root of both sides )

c = [tex]\sqrt{41}[/tex]  ← exact solution → C

Solve the simultaneous equations
3x + 2y = 14
2x + 7y = 15
X =?
y =?

Answers

3x + 2y = 14 --> equation (1)

2x + 7y = 15 ---> equation (2)


multiply equation (1) by 7
and multiply equation (2) by -2

21x + 14y = 98 equation (1)

-4x -14y = -30 equation (2)


21x -4x = 98 -30

17x = 68

x = 4

not by substitution in any equation by x = 4

3x + 2y = 14

3(4) + 2y = 14

12 + 2y = 14

2y = 14-12

2y = 2

y = 1

so x = 4
and y = 1







Please help worth 25 points

A rectangle has a base that is three feet longer than its height. The area of the rectangle is 54 square feet. What are the dimensions of the rectangle?

Answers

Answer:

h=6 feet

Step-by-step explanation:

Given: 1. The base of a rectangle is three feet longer than its height.

2.Are of the rectangle=54 square meters

Let us say the rectangle has height h and base(breadth) b.

Since, the base of the rectangle is three feet longer than the height, we have b=h+3.

Also, Area of the Rectangle= hb

therefore, 54=h(h+3)

54= h2+ 3h

h2+3h-54=0 (Subtract 54 from both the sides)

To find the value of h we have to solve the quadratic equation.

[We have the equation in the form ax2+bx+c=0, to factorise the equation-

Step1. Find two numbers such that their multiplication is equal to ac and their addition is equal to b.

Step2. Replace b with these numbers.

Step3. Simplify the equation]

So, h2+3h-54=0

h2+9h-6h-54=0

h(h+9)-6(h+9)=0

(h+9)(h-6)=0

Which gives-

h= -9 or h= 6

As h is the height of the rectangle, h can not be -9.

so h=6 feet

and b=h+3=9 feet

So the dimensions of the rectangle are 6 feet for the height and 9 feet for the base.

Work out
55
% of
2900

Answers

change 55% to 0.55
0.55 x 2900 = 1595
55% of 2,900 will be 1595

help ASAP!!!!!!!!?!!!

Answers

Answer:

what percent of 60 is 45, = 45/60 = x/100 = 75%,  16 is 20% of what number = 16/x = 20/100 = 80 not 75,  12.6 is 28%of what number = 45

Step-by-step explanation:

just trust me this would be to long to put on this space but if you have any queztions on why I ordered it this way just ask me.

25 points! Please show work for brainlest answer

Answers

Answer:

x² - 10 + 2x = 2x + 90

x² - 10 + 2x - 2x = 2x - 2x + 90

x² - 10 = 90

x² - 10 + 10 = 90 + 10

x² = 100

square root them both and you get x = 10

Step-by-step explanation:

Answer:

x = 10

Step-by-step explanation:

The Picture

Is 1.58745078664 rational or irrational?
Thank you!

Answers

Answer: Rational

Step-by-step explanation:

1.58745078664 is rational

This is due to the fact that the number can be expressed with the ratio of two integers. If you were unable to do so, it would be irrational.

Juan wants to buy a doll house that is 45% off. The original price is
$74.85.
What is amount of discount (nearest hundredth)?

Answer this quick pls!! :,)

Answers

Answer:

well if you would divide 74.85 by 45% you would  33.6825.

and also i am the same guy that you answered a question from bioligy i got 3 more questions plaese answer them if you can.ty:)

Answer:

$33

Step-by-step explanation:

Given :

45%

$74.85

45% of 74.85 is

Answer = $33

Use the double bar graph below to answer the following question.

What was the difference between Dallas' population in 1990 and 2000?



400,000
100,000
300,000
200,000

Answers

Answer:

the difference is 200,000

Answer:

the answer is 200,000

Step-by-step explanation:

24. Woodworking A birdhouse has a square base with
side length 3x - 4. What polynomial in standard
form represents the area of the base?

Answers

Answer:

9x² - 24x + 16

Step-by-step explanation:

Formula for the area of the square base = s²

Where,

s = side length = 3x - 4

Therefore:

Area of the base = (3x - 4)²

Expand

(3x - 4)(3x - 4)

3x(3x - 4) -4(3x - 4)

Apply the distributive property

9x² - 12x - 12x + 16

Add like terms

9x² - 24x + 16

Area of the base in standard form = 9x² - 24x + 16

Answer:

9x^2 -24x +16 units^2

Step-by-step explanation:

(3x-4)^2 = 9x^2 -24x +16

Identify the radius, diameter, and height of each cylinder, Find the Volume.

Answers

Answer:

36pi cm^3 or 113.097 cm^3

Step-by-step explanation:

Diameter = 6

Radius = 3

Height = 4

Volume = pi * r^2 * h

pi(3)^2*4 = 36pi cm^3 or 113.097 cm^3

Can I have some help please

Answers

Answer:

I think it's trapezium .

Some one please help me Thx

Answers

Answer:

3/5

Step-by-step explanation:

3 of the 5 are shaded or indicated

3/5 ffguhhhgggggggyyttttttttttt

plz help i need some one to check if this is right :(

Answers

Answer: No, it's not. x should be 121

Step-by-step explanation:

Answer:

No it is 121

Step-by-step explanation:

22+37= 59

all angles add up to 180 degrees

180-59=121 degrees

Yeah I need help again I suck at math it’s my least fav subject

Answers

I believe it’s 1225....

If it’s right you, use the formula A=s^2....
so in this case just do 35^2 which would be 1225.....

btw demos is a great online calculator (just for future reference) Have a good day! :)

HELP ASAP. ellie wants to order candy online. company A is offering 2 1/2 pounds of chocolate for $31.25; while company B is offering 2 3/4 pounds of the same chocolate for $32.00. what is the unit price for company A and B? (please include units) which company is offering the lowest price? PLEASE SHOW WORK

Answers

Answer: Company B is offering the lowest price

Company A: $12.50 per pound

Company B: $11.64 per pound

Step-by-step explanation:

31.25 / 2.5 = 12.50

32 / 2.75 = 11.636

What is the volume of the rectangular prism?



Question 8 options:

738 ft3


272 ft3


1296 ft3


34 ft3

Answers

Answer:

The volume is Lenght * width * Height

16 * 9 * 9 = 1296 ft cube

Based on a sample survey, a tutoring company claims
that 90% of their students pass their classes. Out of 300 students, how
many would you predict will pass?

Answers

Answer:

270

multiply the number by the percentage-

300 x .90= 270 students

Answer:
Out of the 300, I predict 270 will pass.

Explanation:
You just have to multiply 90% by 300 and you’ll get 270.

Which of the following is the best approximation of the volume of the cylinder below?
A.22,507.5 m^3
B.5626.9 m^3
C.1406.7 m^3

Answers

Answer:

B.

Step-by-step explanation:

V = (pi)r^2h

V = 3.14 * (8 m)^2 * 28 m

V = 5626.9 m^3

Answer: B.

whats the mode of $6.00 $6.00 $6.00 $6.00 $5.00 $7.00 $4.00 $7.00​

Answers

Answer:

4.00,5.00,6.00,6.00,6.00,6.00,7.00,7.00

Step-by-step explanation:

Mean  5.875

Median  6

Mode 6.00

Charlotte owns two entertainment websites. Here are some details about those websites for one entire month:
Website A Website B
Number of writers 555 111111
Number of posts posted 110110110 200200200
Average number of words of post 100100100 170170170
Average likes per post 350035003500 350035003500
Average comments per post 500500500 450450450
Number of new subscribers 900090009000 20{,}00020,00020, comma, 000
Revenue \$30{,}000$30,000dollar sign, 30, comma, 000 \$75{,}000$75,000dollar sign, 75, comma, 000
Expenses \$20{,}000$20,000dollar sign, 20, comma, 000 \$47{,}000$47,000dollar sign, 47, comma, 000
Profit (Revenue-−minusExpenses) \$10{,}000$10,000dollar sign, 10, comma, 000 \$28{,}000$28,000dollar sign, 28, comma, 000
Charlotte wants to know which website produces a larger amount of content per a single writer.
1) Charlotte thought of two different ways to define this quantity. Identify these two definitions among the following options.
Choose 2 answers:
Choose 2 answers:

(Choice A, Checked, Correct)
CORRECT (SELECTED)
Average number of posts per writer

(Choice B, Incorrect)
INCORRECT
Total number of words

(Choice C, Checked, Correct)
CORRECT (SELECTED)
Average number of words per writer

(Choice D, Incorrect)
INCORRECT
Average number of likes per word
2) Determine which website produces a larger amount of content per a single writer according to the two definitions. Did you get the same result for both definitions?
Choose 1 answer:
Choose 1 answer:

(Choice A, Incorrect)
INCORRECT
Yes. According to both definitions, website A produces a larger amount of content per a single writer.

(Choice B, Incorrect)
INCORRECT
Yes. According to both definitions, website B produces a larger amount of content per a single writer.

(Choice C, Checked, Correct)
CORRECT (SELECTED)
No. The definitions have opposite results.

Answers

Answer:

WOAH

Step-by-step explanation:

AWESOME EDUCATION DUDE

Answer:

1) These are the two definitions Charlotte came up with to define the quantity:

Average number of posts per writer

Average number of words per writer

2) The definitions have opposite results.

Step-by-step explanation:

Khan :)

4) A radioactive material decays at a rate of 40% per hour.
a) If we start with 80 grams of the substance, can you find a fomula that models this rate
of decay?
b) How much will be remaining at the end of 6 hours?
Pls help show work

Answers

Answer is a radioactive material decays at a rate of 40%per hour

a triangular prism has bases that are 3 inches tall and 8 inches wide the remaining two sides of each triangular base are 5 inches long, and the distance between the bases of the prism is 12 inches. What is the total surface area?

Answers

Answer:

there are 16 inches of bases

A bakery recorded the number of muffins and bagels it sold for a seven day period. For the data presented, what does the value of 51 summarize?


A) mean of bagels


B) mean of muffins


C) range of bagels


D) range of muffins

Answers

Answer:

Mean of bagel

Step-by-step explanation:

Working out each of the statically summaries Given in the option :

Mean of muffin :

Mean = Σx / n

n = sample size

(61 + 20 + 32 + 58 + 62 + 61 + 56) / 7

= 350 / 7

= 50

Mean of bagel :

Mean = Σx / n

n = sample size

(34 + 45 + 43 + 42 + 46 + 72 + 75) / 7

= 357 / 7

= 51

Hence, from the result obtained, we could see that the value of 51 summarizes the mean of bagel.

select all that apply.​

Answers

I think it’s b and c I’m not really sure

Write the equation of a line with that passes through the
points (-3, -2) and (6,1)?

Answers

*☆*――*☆*――*☆*――*☆*――*☆*――*☆*――*☆*――*☆**☆*――*☆*――*☆*――*☆

: Y = 1/3x - 1

:

M = y2 - y1/ x2-x1

M = 6 - (-3) / 1 - (-2)

Y = 1/3x + b

Then substitute one of the points into the equation

-2= 1/3(-3) + b

-2 + 2 + b = 1/3(-3) +b - b + 2

-b = 1/3(-3) + 2

-b = 1

b = -1

Y = 1/3x - 1

Then i plugged it into

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how to graph 2x + 6y = -8

Answers

this is how this should help.

Other Questions
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