Mathematics Middle School

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 1

Answer:

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

Step-by-step explanation:

Answer 2

Answer:

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

Step-by-step explanation:

Related Questions

is the following number rational or irrational?
√121

Answers

Answer:

Rational

Step-by-step explanation:

Because it gives whole number which is 11

Answer:

Rational

Step-by-step explanation:

SOMEONE HELP ASAPPPP PLEASEEE,PLEASE EXPLAIN HOW U GOT YOUR ANSWER, I NEED AN EXPLANATION IN ORDER TO COMPLETE THIS! NO LINKS OR YOU WILL BE REPORTED, I WILL GIVE BRAINLIEST!!!!! I NEED THE ANSWER TODAY THIS ASSIGNMENT IS DUE TODAY

Answers

Answer:

x = 5

Step-by-step explanation:

4x + 2y + z = 24

2x - 3y - z = 2

5x + y + 2z = 21

-----------------

Eliminate z

Add the 1st and 2nd eqn

4x + 2y + z = 24

2x - 3y - z = 2

----------------

6x - 1y = 26 eqn A

Multiply the 2nd eqn by 2, then add the 3rd.

4x - 6y -2z = 4

5x + y + 2z = 21

----------------

9x - 5y = 25 eqn B

---------------

Now you have 2 eqns in 2 unknowns, not 3.

Multiply eqn A by 5 and subtract eqn B.

30x - 5y = 130 eqn A times 5

9x - 5y = 25 eqn B

-------------

21x = 105

x = 5

Answer:

x = 5 is the answer

Step-by-step explanation:

100 POINTS: ANSWER PROPERLY WITH STEPS SHOWN FOR BRAINLIEST AND POINTS!!!!!!!!!!!! GST AND PST VALUES ARE BASED ON CANADA ONTARIO, IN TOTAL IT IS 15%! CHECK PICTURE

Answers

Answer:

yes i agree with you!!!

Step-by-step explanation:

Hilary is ordering a large circular pizza from her local pizza shop. She asks about the size of the pizza and is given three different values: 14 inches, 44 inches and 7 inches.



Hilary knows three measurements that are used to describe circles: radius, diameter and circumference. Which value best matches each measurement? Explain your reasoning.

Answers

Answer:

7 is the radius

14 is the diameter

44 is the circumference

Step-by-step explanation:

7 is the smallest number of them all so it's the radius. The diameter is double of a radius so 14 is the diameter and finally 44 is the circumference :)

7 in is the radius
14 in is the diameter
44 in is the circumference
7 has to be the radius because the radius is half the diameter. this in turn means that the diameter must be 14. and the circumference is 44 because the circumference is the perimeter of the circle. (it has to be the largest number)

Three ropes of length 2 m 84 cm, 4 m 26 cm and 7 m 10 cm are to be cut into small pieces of equal length. What is the greatest possible length of each equal part, so that there is no wastage? How many pieces are there in total?

Answers

1 m 42 cm, there would be 10 pieces in total. i believe this is right.

The greatest possible length of each piece is 2 cm.

What is HCF?

The highest common factor is defined as the set of numbers with the highest common multiple. The highest positive integer with more than one factor in the set is HCF.

Three ropes of length 2 m 84 cm, 4 m 26 cm, and 7 m 10 cm are to be cut into small pieces of equal length.

We have been given the lengths of the ropes as

2 m 84 cm = 284cm

4 m 26 cm = 426cm

7 m 10 cm= 710 cm

We have to determine the greatest possible length of each equal part So that there is no wastage

So the greatest possible length of each piece will be the HCF of the length of the ropes.

⇒ 284 = 2× 142

⇒ 426 = 2 × 213

⇒ 710 = 2 × 355

Hence, the HCF of the 284, 426, and 710 is 2.

Therefore, the greatest possible length of each piece is 2 cm.

Learn more about the highest common factor here:

https://brainly.in/question/3803222

#SPJ2

can someone help plez

Answers

Answer:

You would use scientific notation for an easier way to simplify a very complex equation, and use standard form whenever you are showing the answer.

Step-by-step explanation:

Hurry Asap Like Rn Pls I Will Give You Brainliest!

Answers

Answer:

Step-by-step explanation:

Each package holds 24 so you would use the equation n = 24p

which means the number of lightbulbs = 24 times the number of packages

so 1 package = 24

3 packages = 72

10 packages = 240

oh and part B is B

Flip a coin 10 times,How many heads?How many tails?

Answers

Answer:

5 heads 5 tails (I think)

Step-by-step explanation:

I will give brainliest to the correct answer!!!

Don't forget...answer both questions

Answers

i think it is this.

1. 2/50

2.  1/10

1. 2/50
2. 1/50 then divided > multiply by 100

I NEED HELP ASAP

Only do 3-5

Answers

Answer:

3. 37.5

4. 60

5. 32

Step-by-step explanation:

Mark me brainliest tho 2

Answer:

3. A=37.5ft

4.A=60in

5.A=32in

Hope I helped you pls mark brainliest if you can

PLEASE ANSWER THE QUESTION BELOW​

Answers

the answer would be B.
y=mx+c

“m” represents the gradient and “c” represents the y intercept

Answer: “A”

Find the slope of the line​

Answers

Answer:

-2/3x

Step-by-step explanation:

To find the slope, you would do rise/run.

To get to one point to the other, you move 2 units down and 3 to the right.

Hope this helps!

2/-3 because rise(going up) Over run(going horizontally) it goes up 2 and over to the left 3 making it negative because it goes left.

Can someone please help me! No bots will be acceptable!!! This is due today. Pls help!! I just need help with number 2. , the first question. Thanks!

Answers

i dont see anything, what do you need help with?

I don’t see any pictures?

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 :)

plz help !

Question 11 of 14
Drag the operation signs to make the equation true. An operation may be used once. more than once, or not at all

Answers

it’s 12 DIVIDE (7-4)+5 TIMES 3=19
12 divide (7-4) plus 5 x 3= 19

I need help understanding and I need help with the answer :)

Answers

Answer:

Step-by-step explanation:

Circumstance of a curcle C=2*pi*r

So if you want to find r from this equation you come up with r=C/2*pi. That's exactly what they give you in the problem.

Now you know that C= 26.69 so replacing what we know in the formula r=C/2*pi you get

r=26.69/2*3.14 =4.25

So looking at the figure you they said r=4.25

That means that the figure is has to be a circle.

Hope that makes sense.

Please help i don’t know what I’m supposed to do!!

Answers

Answer:

do ur assignment by downloading the given document and upload it there..

Can someone please please PLEASEEE help me with these two questions!!



(15 points….)

Answers

Answer:

1) = 2hrs and 30mins

2) = 130miles

Step-by-step explanation:

1) 60mi/hr, total driven 150miles

so at 120miles thats 2 hours. 30 miles is 30 minutes

60+60+30=150miles

2) 40miles/hr you drove 2 hours at 40 miles

40+40 =80miles

50miles/hr you drove 1 hour st 50 miles

40+40+50 = 130miles

Answer: 1)  2.5 hours,  2)  130 miles

Step-by-step explanation:

To solve both of these problems, let us remember the formula:

    Distance = (speed) × (time)

1)  Plug in the numbers into the formula:

    150miles = (30miles/hour) × (time)

Divide both sides by 30miles/hour to solve for time:

    150miles/(30miles/hour) = time

Simplify:

    2.5hours = time

2)  Susan's driving is broken into two parts with different speeds and time.

Solve the distance for first drive by plugging numbers into formula:

    Distance = (40miles/hour) × (2hours)

Multiply:

    Distance of first drive = 80miles

Solve for distance of second drive:

    Distance = (50miles/hour) × (1hour)

Multiply:

    Distance of second drive = 50miles

Add distance of first drive and second drive:

    80miles + 50miles = 130miles

Jasraj left his house and walked 1500 m east to the supermarket. He then walked another 500 m east to the comic store before walking back home the same way he came. How many kilometers did Jasraj walk altogether?

Answers

Answer:

Jasraj walked 4 kilometers all together

Step-by-step explanation:

First, add.

1,500 + 500 = 2,000

Then, multiply by 2.

2,000 × 2 = 4,000

Now, we have to convert to kilometers.

1 kilometer = 1000 meters

4,000 ÷ 1,000 = 4

So, Jasraj walked 4 kilometers!

Have a wondeful day! :)

Realice los siguientes ejercicios de Proporciones
a) 1/16 = 7/x
b) 1/3 = x/9
c) 2/5 = x/15
d) 6/9 = 5/x
e) 78/9 = 39/x
Ayuda por favor :(

Answers

Answer:

ytfdjyuguuc

Step-by-step explanation:

yfullk;ljknlm

please help me due at tomorrow 8a.m

Answers

Answer:

c

Step-by-step explanation:

C it’s c by the way

е The solid shown below is made by combining two rectangular prisms. What is the volume of the solid?

A. 60 cubic inches
В. 120 cubic inches
C. 216 cubic inches
D. 48 cubic inches​

Answers

A 60 cubic inches because you have to split the prism in two and multiply the number by each other
The answer is
A. Sooo yeah 60cubic inches

Can someone please help me thxs.

Answers

The second picture is a

Answer: acute for #1 obtuse for #2 and isosceles for #3

Step-by-step explanation:

pls help asap !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Answers

Just use Brainly

M



M




M


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The ends of the box are the most used numbers (24 & 28) so the first option is correct.

What is the width of this rectangular prism if the volume is 162 cm cubed?
A. 3 cm.
B. 3 cm. squared
C. 3 cm. cubed
D. 108 cm.

Answers

Answer:

A 3 cm

Step-by-step explanation:

Volume is lxwxh, 6x9= 54, and 54x3=162

Answer: 3

Step-by-step explanation:

The equation for volume of a rectangular prism is lwh. We have the lh and 6 times 9 is 54. Now we just divide 162 and 54 and that's the width which is 3. And to double check 3 times 9 times 6 is 162 :)

A store bought 200 toys at a cost of ​$20 each. The store sold all the toys at a percent markup of 30%. Find the total selling price.

Answers

Answer:

5200

Step-by-step explanation:

200x20=4000

30% of 4000 is 1200

4000+1200

Answer:

5200  

Step-by-step explanation:  

200×20=4000  

30% of 4000 is 1200

4000+1200=5200

All of the following expressions simplify to -5x + 7, except ( x - 2) - (6 x - 9) (5 x + 1) - (-10 x + 6) -4 x + 2 x + 7 - 3 x (4 x + 3) + (-9 x + 4)

Answers

Answer:

(-4x+2)+(7-3x)

Step-by-step explanation:

it would give you -7x+9 I believe the others all equal -5x+7

QUIKKK PLEASE HELP
For lines c, d and e, m1 = 90° and m3=90°



For the given diagram and angle measures, use complete sentences to describe each pair of lines as parallel or perpendicular. In your description, include the special angle relationship between angles 1 and 3.
lines d and e
lines d and c

Answers

The relationship between angles 1 and 3 is that they are congruent, or equal to each other. they have the same measure.

Lines D and E seem to be a pair of lines that are parallel to each other, which is what makes angles 1 and 3 congruent

Lines D and C seem to be perpendicular to each other, which would make angles 1 and 3 right angles.

A drum of oil is 4 ft. hieight and the radius is 1.2 ft. Oil cost is $22. What is the cost per cubic ft. to fill the drum of oil?
Use 3.14 for pi.
Round answer to nearest penny.

Answers

3.14 • 1.2^2•4
= 18.0864 ft^3

18.0864 • 22
= $397.9
Answer : $1.2 per cubic foot

Explanation :
1. Do your radius to the power of two and multiply by pi (3.14)
2. That would be 4.5216 you then multiply that by 4(your height) and get about 18
3.You divide 22(cost of oil) by 18(drum of oil) and get about $1.2 per cubic foot

Hope this helps

John has a box of nails. The box contains 65 small nails, 40 medium nails, and 45 large nails. Susan has a box of nails that has the same proportion of small, medium, and large nails as John's box. There are 176 medium nails in Susan's box.

What is the total number of nails in Susan's box?

Answers

Answer:

326

Step-by-step explanation:

Add a nails: 65+40+45+176= The answer

660

Step-by-step explanation:

John

65s (small)

40m (medium)

45 L (large)

Susan

x small

176m

y large

From question:

Susan has a box of nails that has the same proportion of small, medium, and large nails as John's box =Meaning same ratio

John ratio. Susan

s : m : L s : m : L

65 : 40 : 45. 13 : 8 : 9

13 : 8 : 9. x : 176 : y

x = (176/8)*13

=286

y = (176/8) * 9

= 198

Total number of nails in Susan box

= x + 176 + y

= 286 + 176 + 198

=660

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