Mathematics Middle School

A music store is having a clearance sale. All items are discounted by 20%. What is the sale price of a radio that regularly costs $30?

Answers

Answer 1

Answer:

Step-by-step explanation:

You would first multiply 20% by $30. Then you would get 6 and subtract 6 from $30.

Answer 2

Answer:

$24

Step-by-step explanation:

Method 1: find 10% of 30 = 3 (just divide 30 by 10)

then double it to make 20% = 6

subtract 6 from 30 to give 24.

Method 2: 20% = 1/5

To find 1/5 of a number, divide it by 5.

30 divided by 5 = 6.

Then subtract 6 from 30 = 24.

Method 3: to decrease a number by 20% multiply it by 0.8.

30 x 0.8 = 24

Related Questions

Area of Trapezoids: True or false. The height connects the two slants.

Answers

Answer:

false

Step-by-step explanation:

kaylee Meadows apartments for you you can play with the kids and I got a new to me and I got a new to me and I had sex with my math teachers lol

that is indeed false

Find the value of the expression.
07-2
5
The value is

Answers

The valued of the expression is 1 .

The value of the expression as given in the task content by indices is; 1.

What is the value if the expression?

The value of the expression given in the task content is required.

[(3/5)⁰]^-2

From the laws of indices; it follows that (3/5)⁰= 1.

Hence, the expression becomes; [1]^-2.

Ultimately, the value of the expression is; 1.

Answers

Answer:

11 1/2 < 4 yards or 12 feet

Step-by-step explanation:

Answer:

4 > 11 1/2.

Step-by-step explanation:

First we have to find what 4 yards equals to in feet, 4 yards = 12 feet. Therefore, 4 yards is bigger than 11 1/2.

pls help..........................

Answers

Answer:

6.75 or 7 since you need to round

Step-by-step explanation:

Ok so the area of a square is L*W=A, so square A=3*3=9

THe equation for a circle is pi*r^2=A, so circle A=pi*1.5^2=pi*2.25

so the difference is 6.75

some please hepl and do it right pls

Answers

Answer:

7109.76m2

plz mark brainliest

7109.76m2
Because you have to find the area of separate shapes first

A zookeeper is 6 and 1/4 feet tall. A young giraffe in her care is 9 and 3/8 feet tall. What fraction of the giraffes height is the zookeepers?

Answers

Answer:

3 1/8

Step-by-step explanation:

Subtract and then simplify

Answer:

Step-by-step explanation:

1. You know that:

- The zookeeper is 6 1/4 feet tall.

- The young giraffe is 9 3/8 feet tall.

2. Then, to calculate how many times as tall as the zookeeper is the girraffe, you only need to divide the height of the giraffe by the height of the zookeeper:

- Let's rewrite each height as a decimal number: divide the numerator and the denominator of the fraction and add the result to the whole number:

- Divide 9.375 feet by 6.25 feet, then you obtain the following result:

hope this helps

HELP !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Answers

Answer:

e,b,and c but im not for sure

Step-by-step explanation:

I also think it’s e b and c.

Heather wants to form a triangle using a piece of wire that is 40 centimeters long. If Heather uses the entire piece of wire, which could be the side lengths of her triangle?

Answers

Answer:Step-by-step explanation:

All. They all add up to 40.

7 cm, 8 cm, 25 cm- u just add all the numbers and see which one adds up to 40

Help me please!! Please hurry!

It's question 3 and 6 on the right hand side

Answers

Is the picture supposed to have a black line

Answer:

black is the answwer

Describe the probability of rolling a die and landing an even number while tossing a coin and landing on heads.

A. as likely to happen as not to happen

B. impossible

C. likely

D. unlikely

Answers

Answer:

Step-by-step explanation:

The first step is to find the possibility of the die landing on an even number which is 3/6 as there are 6 possible turn outs and 3 of them are even. Which means the probability is 3/6 or in its simplified version 1/2. The second step is to find the probability of landing on heads which is 1/2 as there are 2 possible turn outs and 1 of them is heads. Which means the probability is 1/2 (it cannot be simplified) . To find the probability of both we need to times them together so 1/2×1/2= 1/4. So the probability of getting both is 1/4 which is unlikely probability so the answer is D .

PLZ I WILL GIVE U BRAINS, HELPPPPPP!!!!!!!!!

Answers

30p-7
-7*-4=28
-7*1=-7
28+2= (you add them because they both have the same variable)

Answer:

−26p− 7

Step-by-step explanation:

HELPPP I NEED THE ANSWER FAST PLEASEEE Shirley is buying a $27 scarf. If the sales tax is 7.25% and she hands the cashier $30, how much change will she get back? YOU GET 86 POINTS FOR ANSWERING THIS BECAUSE I HAVE A C- IN MATH

Answers

Hi, I think the answer should be $4.26

7.25% × $24 = $1.74

$24 +1.74 = $25.74

Change is the difference between the amount tendered and this total amount:

$30.00 -25.74 = $4.26

Answer: $1.04

Step-by-step explanation:

Cost of scarf = $27

sales tax = 7.25% of 27 = $1.9575 (round to $1.96)

Total cost = 27 + 1.96 = $28.96

$30.00 - $28.96 = $1.04 change

Marian is making bread, she has 2 4/7 pounds of flour in her pantry. When making the bread, she will use ⅓ of the flour in the pantry. The amount of salt in the recipe is ⅓ of the amount of flour in the recipe. How much salt will Marian need to make bread?

Answers

Answer:

1/9 im pretty sure

Step-by-step explanation:

I genuinely have no idea

ASAP helppppp Give me the correct ones

Answers

Answer:

it are 1 cup : 1/4, 2/3 cup:1cup,2 cup: 2/3 cup

Step-by-step explanation:

Select all ordered pairs that are solutions of y=3x−1.

1: (1,3)

2: (3,8)

3: (7,17)

4: (10,29)

Answers

Step-by-step explanation:

The correct options are

2. (3,8)

4. ( 18 , 29 )

Hope it will help :)

I only know that it is number 2

Water starts out at a temperature of 62 F . It is heated such that its temperature increases at a rate of 8 F per minute. It takes m minutes to reach a boil at 212 . Set up and solve an equation to find out the value of m. (Warning, decimal answer!) I will give brainliest,putting in 12 points!

Answers

Answer:

Step-by-step explanation:

since it starts at 62 and finishes at 150 u can find out that the increase in temp is 150F and since it increases by 8 every minute u can come to find that the increase in temp (150) divided by the amount it increases 8 is 18.75 which is the amount of minutes it took

62 + 8m = 212
8m = 150
m = 18.75

Find the difference.

- 5
- 2.5

A) 3.5

B) 2.0

C) 3.0

D) 2.5

Answers

I guess 2.5 because of it -2.5 from the beginning

Answer:

2.5

Step-by-step explanation:

Since -5 is smaller than -2.5, the answer will be positive. To make life a little easier, you can simply just do 5 - 2.5 and get 2.5.

Hope this helped :)

Art by me but anyways.. there is also a picture of me from like.. 2 weeks ago ;-;

Answers

Answer:

Your art looks really good!

Step-by-step explanation:

From 4 p.m. to 1 a.m. the temperature fell by 2 °F each hour. At 11 p.m. the temperature was 0 °F. Using 11 p.m. as a reference point, Carla calculated the temperature using the expression (-2) × (2). What temperature did she find?

A.

the temperature 2 hours before 11 p.m.

B.

the temperature 3 hours before 11 p.m.

C.

the temperature 2 hours after 11 p.m.

D.
kthe temperature 3 hours after 11 p.m.

Answers

The answer to this question (I think) would be B.

The -3 Is referring to the drop in temperature and the -2 Is referring to the number of hours before 8 p.m.

Can i get a brainliest?

Have a great day!!

-Yumi

Solve for x in the diagram below.

Answers

Answer:

x = 40

Step-by-step explanation:

the line is 180 and there is already a target that is 100

so both x are 40

Answer:

x=40⁰

Step-by-step explanation:

Since a half a circle is 180⁰ and you already have 100⁰. Subtract 180⁰-100⁰ which gives you 80⁰ now divide that by 2 because you are looking for 2 x's which your answer is x=40⁰

Samantha wants to redecorate her room. She would like to replace the carpet and needs
to know how much she needs to purchase. If each inch on the picture represents 2.5 feet, what is the area of
her bedroom floor?

Answers

There are No pictures

Lol you need pictures

Help find the surface area

Answers

Surface area is the sum of the areas of all faces (or surfaces) on a 3D shape. A cuboid has 6 rectangular faces. To find the surface area of a cuboid, add the areas of all 6 faces. We can also label the length (l), width (w), and height (h) of the prism and use the formula, SA=2lw+2lh+2hw, to find the surface area.

Answer:

693600

Step-by-step explanation:

17 X 17 = 289

15 X 16 = 240

289 X 240 = 69360

69360 X 10 = 693600

Jada bikes 2 miles in 12 minutes. Jada's cousin swims 1 mile in 24 minutes.
Who is moving faster? ( IT NOT A ) 10 point

A Jada's cousin is moving faster.

BThey are both moving at the same rate.

CJada is moving faster.

Answers

Answer:c

Step-by-step explanation:

Answer:

It's C

Step-by-step explanation:

Jada 2 miles in 12 minutes

12/2= 6 min per mile

Her cousin 1 mile in 24 minutes

24 min per mile

24-6= 18

ASAP
what is the GCF between x3 y5 and x4 y2

Answers

Answer:

Step-by-step explanation:

x^3y^5: x, x, x, y, y, y, y, y

x^4y^2: x, x, x, x, y, y

GCF: x^3y^2

Answer: x3,y5= 1

x4,y2= 1

Need help. Look at image please!

Answers

Answer:

y = 1.5x

Step-by-step explanation:

2 pints = 3 servings

4 pints = 5 servings

etc

find the pattern lol

Answer:

Y=1.5X

Step-by-step explanation:

use distributive property to solve, show all steps
3(2x-6)

Answers

Answer:

6x-18

Step-by-step explanation:

First we multiply everything in the parentheses by 3

3×2x=6x

3×(-6)=-18

And now we put it together-

6x-18

Answer: 6x-18

Step-by-step explanation:

3×2x=6x

3×(-6)=-18

6x-18

If you going to answer one question say it in the comments it's gonna be the waste of time bc the answer is going to be deleted

Answers

I am going to do number 2 so when you subtract decimals you have to add two zeros like this 10.00 or 0.25 so now when you subtract you get $9.75

Need help with these three please and hurry

Answers

Evan will get 20,000 because 4 years is a while and I searched up and he had a pc job and you get a lot from that so hope this helps

Interest = Principal x Rate x Time
I = (6,000)(0.04)(4years) = $960
And 10 years would be
I = (6,000)(0.04)(10) = $2,400

An airplane flies at a constant rate and travels 570 miles each hour. Which graph shows the total number of miles (m) the airplane will fly at the same rate in different numbers of hours (h)?
answer choices below!

Answers

Answer:

C, or 3

Step-by-step explanation:

1 and two are just straight up incorrect, so that leaves you with 3 and 4.

4 is also incorrect, because at one hour it should have been at 570.

For every arm a person has, they have a leg. Which ratio represents this situation?
a. 1: 1
b. 2:2
c. 2 to 2
d. 4 to 4

Answers

A: 1:1 unless they want you to count both arms then it would be B: 2:2

Answer:

Step-by-step explanation:

It'll be a because every 1 arm, a person has 1 leg. The only ratio that shows this relationship is answer A.

Other Questions

50 points! Mhanifa please answer I will mark brainliest Which trait would be most influenced by environmental changes?A.skin B.eye colorC:blood typed:life span What would society look like without democratic rights? El Dilogo, el granjero y el peregrino 4. Which chemical formula below contains 2different elements?A. COB. Fe2O3C. C2H4D. All of the above how do i word a formal letter to a teacher saying i didn't pay attention during the science lessons and i now have no idea what to do? by the way, this is on edge so i haven't been on a call, or met my teacher in person. SPEECH LINK IN COMMENTSjust copy and fill out doc A chemist working as a safety inspector finds an unmarked bottle in a lab cabinet. A note on the door of the cabinet says the cabinet is used to store bottles of pentane, ethanolamine, diethylamine, glycerol, and carbon tetrachloride. The chemist plans to try to identify the unknown liquid by measuring the density and comparing to known densities. First, from his collection of Material Safety Data Sheets (MSDS), the chemist finds the following information: liquid density pentane 0.63gmL, ethanolamine 1.0gmL, diethylamine 0.71gmL, glycerol 1.3gmL, carbon tetrachloride 1.6gmL Next, the chemist measures the volume of the unknown liquid as 1737.cm3 and the mass of the unknown liquid as 1.23kg . Calculate the density of the liquid. Be sure your answer has the correct number of significant digits. The temperature in marks town is 30 degrees Fahrenheit. The temperature in Vikkis town is 82 degrees Fahrenheit. In both towns, the relative humidity is 90 percent. Is the amount of water vapor in the air the same in both towns? What is 75 times 4 does anyone know if they do I need a asnwer asap Please and Thank you Pls help me Ill make brainliest Literally just tell me about your day. Rant about something, say something you haven't told people yet. Responding to all :) (And if you're just scrolling by, I hope you're having an amazing day. ILY!!) photosynthesis uses this form of energy to drive the process What is the value of log3 81?O 2O 3O 4O 5 Which of the following rules represents the set of ordered pairs?{(2, 5), (3, 7), (5, 11), (0, 1)}(x ) = 2x + 1(x ) = x + 5(x ) = -x + 10 What events led to the beginning of World War I? Be sure to explain the significance of each event. In chapter 7. Describe Esperanza's new house. How is it different from her old house? why did native american economic systems weaken in the late nineteenth century? Which of the following was an effect of the increase in Americans moving to Texas? aThe United States created incentives to keep Americans from emigrating. bThe Texan economy got stronger as more people joined the workforce. cThe Mexican government passed restrictions on Americans emigrating to Texas. dNative Texans were driven further off of their ancestral lands. 5.Write observation and conclusion of each of the following activities.