Mathematics Middle School

Select all the expressions that represent a 20% discount off the price of an item that originally costs d dollars.
0.8 – d
0.8d
d – 0.2
d – 0.2d
1 – 0.2d

Answers

Answer 1

Answer:

B. d - 0.2

20%= 20/100= 0.2

so price= d-0.2

Step-by-step explanation:

Related Questions

REWARDING BRAINLY TO CORRECT ANSWER

Answers

Answer:

x - 16 > 8 (lets solve first before we graph)

+16    +16

X > 24

Since X is greater than 24 we need to show that on the number line.

Pick the circle that is hollow,

Put the hallow circle point on 24,

Then make the arrow go to the right of 24 showing that x is greater than 24.

x- 16 > 8 have nice day :)

During a debate, Bonnie used 9 minutes to present her opinion, 6 minutes to rebut the opposing opinion, and 5 minutes to summarize.
What percent of the time did she spend summarizing?
A. 5%
B:30%
c. 45%
D. 25%
E. 15%

Answers

Answer:

25%

Step-by-step explanation:

9 + 6 + 5 = 20

she spent 5 minutes summarizing so that is 5/20

5/20 = .25

.25 x 100 = 25%

Answer:

25%

Step-by-step explanation:

Can u explain how to get the answer???

Answers

Answer:

Since there are 8 sections and 3 are even

We consider that 3/8

We now multiply by 120 since they said 120 times it is spun

3/8 x 120 = 45

The answer is 45.

It's hard to explain how I got the answer but I gathered the info below to help me get it.

There are 8 different sections on the wheel. 5 are odd numbers and 3 are even. 5/8 chance of getting an odd number 3/8 chance of getting an even number. The wheel is spun 120 times.

Hope this helps!

Please answer all questions

Answers

Tank A that’s all I know

The price of a mat is x USD from the start. Write an algebraic expression for the price in the following situations:


a) After it's been reduced by 50%

b) After it's been reduced by 50% twice

c) After first being reduced by 60% and then 40%

Answers

Answer:

a) 1/2x b) 1/4x c) 0.16x

Step-by-step explanation:

Answer:

a) 1/2x b) 1/4x c) 0.16x

Step-by-step explanation:

Mu is walking laps to raise money for charity. For each lap she walks, her sponsors will donate $7. Mu has walked l laps and raised a total of $150

Write an equation to describe this situation.

Answers

Answer:

7[tex]l[/tex]=150

Step-by-step explanation:

Each lap is worth $7, so if Mu walked [tex]l[/tex] laps and the total is $150, then the equation would be

7[tex]l[/tex]=150

7l=$150
l= 21.82 so mu would have to walk 22 laps to make $154 ; 21 laps would only make $147 . And there is no such thing as 21.82 laps .
However if you only needed the equation it is 7l=150

The weight of the square is 10 grams
how much heavier is the circle then the triangle
Will be marked BRAINLIEST

Answers

Answer:

The circle is 2 times heavier than the triangle.

Step-by-step explanation:

We can see this by identifying the amount of squares there are per shape.

Since there are 3 triangles and 3 circles on each side, we can identify how heavy each one is by comparing them to the squares.

There are 2 squares per triangle and 1 square per circle, so we know that the circles are 2 times heavier than the triangles.

The weight of the circle is 10 grams heavier than the weight of the triangle.

What is the solution to the equation?

In other words, the collection of all feasible values for the parameters that satisfy the specified mathematical equation is the convenient storage of the bunch of equations.

The weight of the square is 10 grams. Let 'x' and 'y' be the weight of the triangle and circle. Then the equation is given as,

x + 20 + x + 20 + x + 20 = y + 10 + y + 10 + y + 10

Simplify the expression, then we have

x + 20 + x + 20 + x + 20 = y + 10 + y + 10 + y + 10

3x + 60 = 3y + 30

x + 20 = y + 10

y = x + 10

The weight of the circle is 10 grams heavier than the weight of the triangle.

More about the solution of the equation link is given below.

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I Will Give Brainliest Pls Hurry Asap Help!

Answers

Answer:

300

Step-by-step explanation:

100 is for 4. 300 is for 12, and 280 is for x. All you have to do is rotate the shape to make it fit.

Please mark as brainliest

c.) 300 is the answer

help me When finding the length of the hypotenuse of a right triangle, why might you approximate the answer?

Answers

Answer:

You may have to use trig functions. These are calculated with a calculator and may have several decimal points

jake will spend $87.50 for a new baseball glove. He has $75.23 in the account linked to his debit card. the bank charges a $9 pentalty fee, per day, for using his debit card to make a purchase if he doesn't have enough funds in his account. what will he pay altogether if he chooses to use his debit card and doesn't put any more money in his account for 9 days

Answers

Answer:

88.31 is you anwser

Step-by-step explanation:

Answer:

the answer is $168.50

Step-by-step explanation:

he will spend $87.50 on the glove and they will charge him 9 dollars for nine days adding up to $81.00 so in total it will add up to 168.50

If a triangle has a base of 64 m and a height of 7.3 m then what is the area of the triangle? please show your work!

Answers

area is base x height over 2
64 x 7.3 = 467.2
467.2/2 = 233.6
the area is 233.6m^2

Answer:

233.6m²

Step-by-step explanation:

Area of a triangle formula:

[tex]A = \frac{(h)(b)}{2}[/tex]

Plug in the numbers:

A = 7.3*64/2

A = 233.6m²

∴∵∴∵ What is the value of the expression 9 − [tex](1/2)^{4}[/tex] ⋅ 48? ∵∴∵∴

Answers

Answer:

The value of the given expression is 6.

Step-by-step explanation:

raise the 1/2 to the 4th power
9 - 1/16 • 48
multiply 1/16 by 48
9 - 3
subtract by 3
6

PEMDAS

Isaiah is having his house painted. He paid $525 for the required materials, and he will pay $30 an hour for the painters to complete the job. Which equation shows the relationship between y, the number of hours the painters work, and x, the total cost of the project?
A. y = 525x + 30
B. y = 30x - 525
C. y= 30x + 525
D. y = 525x + 30

Answers

Answer:

Step-by-step explanation:

x is the amount of hours it will take. Since he pays $30 per hour, your answer would be 30x + 525

ANSWER ALL THE QUESTIONS TO GET MARKED BRAINLYEST

Answers

Answer: 7/10, 7/10 and 3/10.

Step-by-step explanation:

7/10 = Between 1 and 10, the multiples of three are 3, 6, and 9. So the amount favourable outcomes is the total minus the multiples, 10-3 = 7. So 7/10.

7/10 = Between 1 and 10, the multiples of 2 are 2, 4, 6, 8, and 10. The multiples of 3 are 3, 6 and 9. That, gives 7 favourable outcomes (6 is a multiple of both but counted once) giving the probability of 7/10.

3/10 = The favourable outcome is 8 and above, so: 8, 9 and 10. There are 3 favourable outcomes which gives the probability of 3/10.

You have the 1st one correct...
The second one is 8/10...
The 3rd is 3/10

Hope this helps

Catherine owns a bakery. She takes x minutes to bake a tray of cookies. The time it takes is less than 18 minutes. Which inequality represents this?

18 > x

x = 18

18 < x

x > 18

Answers

Answer:

18>x

Step-by-step explanation:

Answer:

I don't know but I think it is 18 < x.

Step-by-step explanation:

I hope this answers your question :)

Holly, Chris and Tony each collect action figures. Chris has twice as many action figures as Holly Holly has 3 fewer action figures than Tony. Create an expression that represents the number of action figures Chris has in terms of the number of action figures Tony has, t.

Answers

Answer:

Step-by-step explanation:

3-t

3-T I’ve done this question before

Plz help i need to finish this quiz in 10 mins!

Answers

Answer:

(1,2)

Step-by-step explanation:

(2, 1)

Explaination: x=2 y=1

Four runners completed in a 10-kilometer relay race. Each Runner ran the same distance. What was that distance?

Answers

Answer:

each runner ran 2.5 kilometers

Step-by-step explanation:

10÷4=2.5

The distance would be 2.5 kilometers if four runners completed a 10-kilometer relay race while covering the same distance each.

What is division?

A method of dividing something into equal parts is called division. It produces a fair distribution of resources and is one of the four basic operations in mathematics.

How to solve this problem?

Total distance = 10 kilometers

Total number of runners = 4

Since they all covered the same distance,

the distance = 10/4 = 2.5 kilometers

Therefore, the distance would be 2.5 kilometers if four runners completed a 10-kilometer relay race while covering the same distance each.

Learn more about division here -

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can u help me...............

Answers

Answer:2.4

Step-by-step explanation:

Answer:

2.4

Step-by-step explanation:

I got this anwer because If 2.36 round up It will be 2.4 because Think of it that To round 2.36 to the nearest tenth consider the hundredths’ value of 2.36, which is 6 and equal or more than 5.

what is the value of g ?

Answers

Answer:60.5

Step-by-step explanation:

it would be 60.5 because of the same angle measures as the first angle above it.

Please show me how you got your answer and i will give you brainliest
A sphere has radius of 3 cm. What is the volume of the sphere?
A) V = 9 pi centimeters cubed
B) V = 36 pi centimeters cubed
C) V = 108 pi centimeters cubed
D) V = 288 pi centimeters cubed

Answers

Answer:

I think it's C) V = 108 pi centimeters cubed

Step-by-step explanation:

am not sure but GOOD LUCK HOPE THIS HELPS

Answer:

V=36 pi cm squared

Step-by-step explanation:

Which of these sets is a Pythagoreah Triple?
A) 5, 8, 17
B) 21, 20, 41
C) 4,5,6
D) 64, 36, 100

Answers

Answer:

None

None of these answer choices are Pythagorean Triples

For B 21 and 20 are I’m not sure about 41. So I would go with B, but I’m not for sure.

Hurry Asap I Will Give You Brainliest Pls Help!

Answers

Answer:

C.

Step-by-step explanation:

6 to the second power is 36. 6 x 6 is 36. I'm really bad at explaining so I'm sorry if you don't understand.

The table shows a linear relationship between the values of
Which equation represents the relationship in the in the table? ^image

Answers

Answer:

B

Step-by-step explanation:

Trust Me

B tryst trust trust trust

PLSS HELPP DUE IN 10 MINUTES

Answers

The answer is 2502.

Answer:

Step-by-step explanation:

go to quiziz just replace the last part with rocks

(answers for quiziz)

.On a radio morning show, every 12th caller receives concert tickets, and every 16th caller receives an autographed album. What caller number will receive both

Answers

Hello!
Let’s write out the multiples of 12 and 16.
12: 12,24,36,48,60,72
16: 16,32,48,64,80,96
Since 48 is in both, caller number 48 will get both

The caller number will receive both would be 48.

What is Least common multiple?

The Least common multiple of two or more numbers are the smallest number that is multiple of two or more numbers.

Given that;

On a radio morning show, every 12th caller receives concert tickets, and every 16th caller receives an autographed album.

Now,

Since, On a radio morning show, every 12th caller receives concert tickets, and every 16th caller receives an autographed album.

Hence, The common caller number is find by calculating the LCM of 12 and 16.

⇒ LCM of 12 and 16 = 48

Thus, The common caller number which receive both will be 48.

Learn more about the Least common multiple visit:

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A worker can load 4 pallets in 30 minutes. At that rate, how many pallets can he load in 4 hours?

Answers

8 pallets each hour so it would be 8 x 4 to find the answer. the answer is 32 pallets

Answer:

32

Step-by-step explanation:

1 hour = 60 minutes

Thus, 30 minutes if half an hour.

The worker can load 4 pallets every 30 minutes.

30*2=60

4*2=8

So the worker can load 8 pallets every 60 minutes, or every hour.

8*4=32

So, a worker can load 32 pallets in 4 hours.

BONUS: The worker can load 1 pallet every 7.5 minute

Brainliest pls

Kinda need help in this one.

Answers

Answer:

0.45 liters evaporated

Step-by-step explanation:

1.5 × 0.30 to find the amount that evaporated

The 0.30 comes from the 30 percent that evaporated

The answer should be 0.45

Can I have an answer? Mathematics. HELP.

Answers

Answer:

Step-by-step example

unit rate: 1/0.10= 10 cents hope that helps :)

10 cents. hope that helps. the person above explained the math

HELP PLEASE BTW ITS RATIOS!

Answers

35:63:28 please reward me brainiest
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