Mathematics High School

Mary got a rectangular box. If the perimeter is 82cm and the length is 23cm, what is the
width of the box?

Answers

Answer 1

Answer:

w = 18cm

Step-by-step explanation:

Using the formula

P = 2 (l + w)

Solving for w

w = P

2﹣l = 82

2﹣23 = 18cm

Related Questions

Eloise practiced piano for 2/5 of an hour. Sarah practiced piano for 3/4 of an hour.
How much longer did Sarah practice than Eloise?

Answers

Answer:

21 min longer

Step-by-step explanation:

For Eloise, we need to know how much 1/5 of an hour is in min. So divide 60 by 5 and we get 12min. So 2/5 of an hour is 2x12, giving us 24 min.

For Sahrah, we need to know how much 1/4 of an hour is in min. So divide 60 by 4 and we get 15min. So 3/4 of an hour is 3x15, giving is 45 min.

now that we know how long they practiced, we find the difference by subtracting. 45-24 = 21

The manager of a bank recorded the amount of time each customer spent waiting in line during peak business hours one Monday. The waiting times are shown below.
2
3
7
21
19
8
S
12
6
5
7
2
Find the mean waiting time. Round your answer to one decimal place.
8.0 min
7.2 min
7.5 min
6.8 min

Answers

The answer is 6.8 minutes

Find 9% of $2005.00
Can anyone answer this ASAP!!!

Answers

Step-by-step explanation:

= [tex]\frac{9}{100}[/tex] × [tex]2005[/tex]

= [tex]\frac{3609}{20}[/tex]

= [tex]180\frac{9}{20}[/tex] or 180.45

please give me a brainliest answer

anybody answer this question seriously please it has to be correct

Answers

Answer: that epuals 2/7

Step-by-step explanation:exam

Conner walked 10 miles in 5 hours. What was his walking rate in miles per hour?

Answers

Answer:

Step-by-step explanation:

Hi there!

According to the question;

Distance (d)= 10 miles

Time (t) = 5 hours

Now;

Rate = [tex]\frac{distance}{time}[/tex]

        = [tex]\frac{10}{5}[/tex]

Therefore, the rate of his walking rate in miles per hour is 2miles per hour.

Hope it helps!

PLS HELP RIGHT NOW !!!!

Answers

Answer:

1-*8364464737353=kgkdtyry

a^27/8





I think yayyayaya

i need help with this

Answers

The given angles are complementary, therefore:

(5r + 5) + (8r -6) = 90°

13r - 1 = 90
13r - 1 + 1 = 90 + 1
13r = 91

13r/13 = 91/13

r = 7

y=f(x)=x+3÷2,x€{1,5,-3
​

Answers

Answer:

Yo use gauth mathhhhhhh

A game spinner has 8 sections, 3 red, 1 blue, 2 yellow, and 2 green. What is the probability of not spinning a green?

Answers

Answer:

3/4

Step-by-step explanation:

green takes up 1/4 so the rest that arnt green is the answer

Andre is paid $12 per hour at his caddying job and $9.50 per hour working at a local fast food restaurant. He would like to keep both jobs and earn at least $275.00 a week, but he can work no more than 25 hours. If x represents the number of hours Andre works at his caddying job and y represents the number of hours he works at the restaurant, which system models this scenario?

Answers

The equation that can be used to model this scenario is 12x + 9.5y ≥ 275 and x + y ≤ 25

Let x represents the number of hours Andre works at his caddying job and y represents the number of hours he works at the restaurant.

Since he earn at least $275.00 a week, hence:

12x + 9.5y ≥ 275   (1)

Also, he can work no more than 25 hours, hence:

x + y ≤ 25   (2)

Therefore the equation that can be used to model this scenario is 12x + 9.5y ≥ 275 and x + y ≤ 25

Find out more at: https://brainly.com/question/25285332

Pls help will give brainiest!!!

Answers

Answer:

ikaw mag sagut nyan tiba may utak ka? Tanga kaya mo na yan

Step-by-step explanation:

She's imperfect but she tries

She is good but she lies

She is hard on herself

She is broken and won't ask for help

She is messy but she's kind

She is lonely most of the time

She is all of this mixed up

And baked in a beautiful pie

She is gone but she used to be mine

What type of property is 3x•2y=3•2•x•y

Answers

This is the commutative property because you have 3*x*2*y and you turn the x and the 2 around. The commutative property states that a * b = b * a and therefore x*2 = 2*x.

if a dog eats 20\21kilograms of food per day. How many kilograms will the dog it in the month of august​

Answers

Answer:

620 to 651

Step-by-step explanation:

21x31=651

210x31=620

Step-by-step explanation:

if a dog eats 20\21kilograms of food per day. How many kilograms will the dog it in the month of august

august has 31 day's so

20/21×31=

=29.524

×/2=y/3; y/4=z/4 và x+2y-z=10

Answers

Answer:

Step-by-step explanation:

[tex]\dfrac{x}{2}=\dfrac{y}{3}\\\\[/tex]

Cross multiply,

3x = 2y    ------------(I)

[tex]\dfrac{y}{4}=\dfrac{z}{4}\\\\4*\dfrac{y}{4}=\dfrac{z}{4}*4\\\\y=z[/tex]

y = z --------------(II)

Plugin y =z in (I)

3x = 2z

3x/2 = z  ----------------(III)

x + 2y - z = 10

From (I) and (III)

[tex]x + 3x - \dfrac{3x}{2}=10\\\\4x - \dfrac{3x}{2}=10\\\\Multiply \ the \ entire \ equation \ by \ 2\\\\2*4x - 2*\dfrac{3x}{2}=10*2\\\\8x - 3x = 20\\\\5x = 20[/tex]

Divide both sides by 5

x = 20/5

x = 4

Plugin x = 4 in (I)

3*4=2y

12 = 2y

2y = 12

y = 12/2

y  = 6

z = y

z = 6

-9 ÷ 7.2 as a decimal

Answers

your answer as a decimal is -1.25

Can someone solve the whole thing for me please it isnt a test its an online assignment and ill give you brainliest if you solve all of them correctly

Answers

Answer: do you have a email so i can send it to you??

Step-by-step explanation:

whats the y intercept

Answers

Answer:(0,4)

Step-by-step explanation:

y intercept is (0,4)

the reason being the equation is y = 1/3x + 4.

The queen marys 2’d height above water is about the same as a 14 story building, what is the queen mary twos height above water, pls help this is due today

Answers

Answer: Length 1,132 ft

Step-by-step explanation: Im not sure if this is the one your talking about but here.

A baker used 3kg of baking powder every for every 12kg of flour. if he used 180kg of flour for the Christmas season. how many kg of baking powder did he use in all. help now, please

Answers

Answer:

Step-by-step explanation:

12 kg of flour for 3 kg of baking powder

so 1 kg of flour = 3/12 or 1/4 of baking powder

180 kg of flour = [tex]\frac{1}{4}[/tex] × 180 kg of baking powder

= 45 kg of baking powder for 180 kg of flour

please give me a brainliest answer

Step-by-step explanation:

Step-by-step explanation:

12 kg of flour for 3 kg of baking powder

so 1 kg of flour = 3/12 or 1/4 of baking powder

180 kg of flour = 14\frac{1}{4}

4

1

× 180 kg of baking powder

= 45 kg of baking powder for 180 kg of flour

please give me a brainliest answer

0.02349 in standard form to 3 significant figure is?​

Answers

Answer:

I believe that would be 0.0235. I hope this helps you! :)

Answer:

0.0235

Step-by-step explanation:

dfrac{2349}{100000}

Round to the required significant figure: 0.0235

fine all the prime factorization for 22, 44 show your work

Answers

Answer:

Step-by-step explanation:

Greatest common factor (GCF) of 22 and 44 is 22.

GCF(22,44) = 22

We will now calculate the prime factors of 22 and 44, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 22 and 44.

what is the answer of this? 4x²-9y²+36y-36=0 ​

Answers

Answer:

x = + - 3(y-2)

this it ut

Answer:

It will be the oval, yw :)

Help me please help I will give you 13 point because this is due help me please

Answers

Answer:

Expression 1: 16÷8 has the greatest value.

Step-by-step explanation:

16÷8 =2

whereas,

0.16÷8= 0.02

1.6÷8= 0.2

0.16÷0.8= 0.2

:)

Needing help thanks!

erica recorded the number of sales she made during each of the first 4 months when she began her new career erica plottedthe data on a coordinate grid and she noted that the data correlate to an exponential equation as shown (image attached)

What is the domain of the function shown in the graph?

Answers

The domain of the function from the graph.

{10, 20, 40, 80}.

Option B is the correct answer.

What is a function?

A function is a relationship between inputs where each input is related to exactly one output.

Example:

f(x) = 2x + 1

f(1) = 2 + 1 = 3

f(2) = 2 x 2 + 1 = 4 + 1 = 5

The outputs of the functions are 3 and 5

The inputs of the function are 1 and 2.

We have,

The coordinates from the graph:

(1, 10), (2, 20), (3, 40), (4, 80)

The domain of the function from the graph.

= 10, 20, 40, 80


Thus,

From the graph, the domain of the function

{10, 20, 40, 80}.

Learn more about functions here:

https://brainly.com/question/28533782

#SPJ1

During the summer, Hector does yard work, and Geri babysits.To show their earnings, Hector makes a graph, and Geri makes a table. Which statement is true?

Answers

Answer:

Step-by-step explanation:

$6.59

Answer:

Hector earns $6.50 more per hour than Geri.

15 cm
T
9.9 cm
12 cm

-
Find volume

Answers

Step-by-step explanation:

The volume = 15 × 4.2 × 9.9 = 623.7

please give me a brainliest answer

HELP! QUICK! NO BOTS!

Answers

The last one I believe 5^2*5^4

Answer Asap!
<3 THX <3
XOXO Also giving out brainliest!

Answers

Answer:

4,3 becomes 0,0 after the changes

Answer:

32

Step-by-step explanation:

28 29 30

Is this equation in standard form?
3xy+ y2=4

Answers

Answer:

standard form is {Ax+By=c}

as mentioned above the given equation is not in {Ax+By=c}..

hence it's not in standard form

Answer:

ax+by=c so no

Step-by-step explanation:

Azim wants to order school spirit t-shirts for the fundraising club. Company R charges a $70 screen setup fee plus $11.25 per t-shirt. Company S charges a $35 screen setup fee plus $14.75 per t-shirt. What equation can determine the number of t-shirts, x, that need to be ordered for the total cost of Company R to equal the total cost of Company S?

Answers

Answer:

10 t shirts

Step-by-step explanation:

70 + 11.25x = 35 + 14.75x

35 + 11.25x = 14.75x

35 = 3.5x

10 = x

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