Mathematics Middle School

HELP PLEASE
use the given information to answer each question.

7. A dress that normally sells for $72 is on sale for $45. what is the percent decrease in the price?

8. A home purchased for $120,000 in 2012 is sold for $156,000 in 2015. what is the percent increase in the price?

9. the CD warehouse purchases CDs for $6 each and sells them for $9 each. what is the percent increase in the price?

10. the CD warehouse is having a clearance sale. A CD player that originally sells for $60 is now priced at $36. what is the percent decrease in the price?

11. the local highschool sold 1914 tickets this year to its spring musical. That was 174 more rickets sold than last year. what is the percent increase in the number of tickets sold?

12. Ken's heart rate went from 74 beats per minute while resting to 148 beats per minute while exercising. What is the percent increase In his heart rate

Answers

Answer 1
7.
Discounted price X
————————— = ———
Original Price 100

45 x
—- = —-
72 100

Cross multiply

45 times 100= 4500
72 times x= 72x

72x=4500

Divide

4500/72= 62.5%

Related Questions

what is the solution to this system of equations?

Answers

Answer:

D

Step-by-step explanation:

Answer:

No answer

Explanation:

There is no equation

Help please!!!!!!!
ASAP!

Answers

Answer:

The third graph is correct

Step-by-step explanation:

Hiiii,

Since the sign is < and doesn't have a line underneath (or equal to), it means we have an open circle. We also know that the line has to go to the left because all the values that go to the left make the inequality true. If they go to the right, it won't be true because the value will be greater than 21 and we need it to be less than 21.

Hope this helps :)

It’s the third graph

I just realize someone else answered

How do the solutions of the two inequalities differ? Are any of the solutions the same? Explain.

a. x + 5 < 8 and x + 5 > 8

b. x + 5 <_ 8 and x + 5 >_ 8

Answers

Answer:

a equation: shows the equal value of two expressions

a inequality: shows that an expression is lesser than or more than the other

Step-by-step explanation:

they are not the same solution a being and equation and b being inequality

correct me if im wrong please because im not pretty sure i haven't done this in a while.

have a good day lovely <3



Which expression represents the phrase "double the sum
of 12 and 9"?
2 + 12 + 9
2+(12 + 9)
2 X (12 + 9)
2 X 12 + 9

Answers

c. 2x (12 + 9)
hope it’s helps

Answer:

2x(12+9)

Step-by-step explanation:

its asking for double the sum, so you need to find the sum first, hence the parentheses, then double, adding the 2 to the outsude. this follows PEMDAS

a cone has a height of 11 millimeters and a radius of 5 millimeters. what is its volume?

Answers

Answer:

287.83 cubic mm

Step-by-step explanation:

Given,

Height of the cone = 11 mm

Radius of the cone = 5 mm

Therefore, volume of the cone

[tex] = \frac{1}{3} \pi {r}^{2} h[/tex]

[tex] = \frac{1}{3} \times 3.14 \times 5 \times 5 \times 11[/tex]

= 287.83 cubic mm (approx. ) (Ans)

If the cone has a height of 11milimeeter the answer is 226.26

4^0 in expanded form

Answers

Answer:

4

Step-by-step explanation:

zero means 0 or nothing

The answer is the number 4

what is 3,586 rounded to the nearest hundred

Answers

Answer:

3600

Step-by-step explanation:

Answer:

3,600

Step-by-step explanation:

The 5 is in the Hundreds place.

Look at the number behind it and that will help you figure out to round up or down. (In this case you round up)

Then add zeros behind the hundreds place

Ten deer were introduced into a protected preserve. Their expected population doubles each year. Which equation can be used to represent this problem situation?
A) d(t) = 10(2)^t
B) d(t) = 2(10)^t
C) d(t) = 10 • t^2
D) d(t) = 2t + 10

Answers

A. Let Me Know If I’m Wrong
The correct answer would be option number C.

Yes help pls giving brainlest

Answers

Answer:

1 and 7/12 hours

Step-by-step explanation:

2 and 1/3 is the whole. You need to subtract 3/4. To bring both of these to the same denominator, multiply each fraction by the others denominator. That means 1/3 is now 4/12 and 3/4 is now 9/12. They can now be subtracted. 2 and 4/12 - 9/12 = 1 and 7/12.

Answer:

She spent 1 7/12 hours playing video games

Step-by-step explanation:

i

used

my

calculator

WILL GIVE BRAINLIEST, 5 STARS, AND THANKS
... If correct
Harriet packed her blocks in a box to move. She put a 5 by 6 array across the bottom. She was able to fit 8 layers in each box. How many blocks could fit in 3 boxes?

Answers

(5)(6)(8) = 240
240 blocks in one box.
(240)(3) = 720
720 blocks in three boxes

. Which problem has a remainder of 3? *

A. 51 divided by 8
B. 481 divided by 9
C. 1,256 divided by 5
D. 3,180 divided by 9

Answers

Your answer is C lmk if that helps!

Please help it's
Use Pythagorean theorem to find isosceles triangle side lengths

Answers

Answer:

44

Step-by-step explanation:

Answer:

The answer is B.

Step-by-step explanation:

a^2 + b^2 = c^2

(5)^2 + (12)^2 = (x)^2

25 + 144 = x^2

sqrt169 = x

13 = x

PLEASE HELP ITS TIMED WILL GIVE MORE THEN 5 POINTS AND BRAINLIEST

Answers

Answer:

I believe it is c

Step-by-step explanation:

Correct me if I'm wrong but since the two lines look the same length I believe it is c

Please help (Timed) will give brainliest!

Answers

Answer:

60-(15+10)

60-25

35 is the answer

Answer:

35

Step-by-step explanation:

There are 15 history books, 10 sports books, and 60 animal books.

15+10=25

60-25=35

Use the order of operations to find the value of the following expression.

3 + √81 ÷ 3 - (1 × 4)

12
0
20
2

Answers

The answer to your question is 2

Step-by-step explanation:

According to BODMAS method,

3+9÷3-(1×4)

3+9÷3-4

3+3-4

6-4

2

Please help and serious answers only!

Answers

Answede45

Step-by-step explanation:

Answer:45
Hope this helps

4x3/4 will it be equal to less than or greater than 4?

Answers

Answer:

4x3/4= 3.

Therefore, it will be less than 4, as 3 is less than 4.

Answer:

can u tell me

Step-by-step explanation:

please help me, i really need help

Answers

Answer:

23

Step-by-step explanation:

45

In miles it is 1.2 and in hours for the first one 1 hour and 4 hours ratio 1:2,1:5.1:9:2:3

brainliest!!!

pls help

Answers

Answer:

31.6

Step-by-step explanation:

38+29+16+42+33 = 158

158÷5 = 31.6

31.6 I’m sure this is it but hope am not wrong good luck!

Which statement is true? A: 1/6=0.16 B: 0.08=4/5 C: 0.25<1/4 D: 1/3>0.3

Answers

Answer:LA

RESPUESTA ES LA C

It is either c or d

How many centigrams are in 6.2 dekagrams?6.2 dekagrams = centigramsA 2-column table with 7 rows. Column 1 has entries kilo, hecto, deka, unit, deci, centi, milli. Column 2 has entries 1,000, 100, 10, 1, 0.1, 0.01, 0.001.

Answers

Answer:

6,200

Step-by-step explanation:

Your welcome :)

The children's section is rectangular and has three of its corners at (-10, 10), (-10, 4), and (-3, 10). What is the area of the children's section, in square feet? Explain or show how you got your answer.

Please answer this without a link bc i cant load in some links rn

Answers

Answer:

42

4 to 10 is 6

-3 to -10 is 7

7x6=42

Step-by-step explanation:

how is solving inequalities with addition and subtraction similar to and different from solving equations with addition and subtraction?

Answers

That technique for solving equations is: Whatever you do to one side of the equation, you have to do to the other side to preserve the equality The technique for solving inequalities is: Whatever you do to one side of the inequality, you have to do to the other side to preserve the inequality. the techniques are the same. The difference between solving equations and solving inequalities is: If you multiply or divide an inequality by a negative number, then the inequality reverses. !!!!!

can you help me plsssssssssssss

Answers

lol pretty sure it’s d but yeah.
D is the correct answer Because our medium ones sorting out least to greatest numbers our median is 78 from there our minimum is 60 an hour maximum is 100 now looking at the numbers 60-78 the median is 65 and from numbers 78 through 100 the median is 90 which is answer D

Will give brainliest to correct answer please help

Answers

Answer:

Step-by-step explanation:

All I did was multiply all of the coordinates by 2.

There is a file attached with all of the coordinates.

Answer: 1a) the new coordinates would be (0,18, 12)

1b) actual picture width= 5 1/2 height= 8 1/4

New picture width= 11 1/2 height= 17 1/4

1c) enlargement

1d) 0

Step-by-step explanation:

Help please ::)))))........................

Answers

Answer:

4:9

Step-by-step explanation:

Circles: 8Total shapes: squares + circlesTotal shapes: 10 + 8Total shapes: 18Circles : Total shapes = 8:188:18 = 4:9

I hope this helps!

The answer is 4:9




Hope this well help you a lot ❤️

please help me! i d k how to do this ahhh

Answers

It’s B I am pretty sure if not then I am sorry but I do feel like it’s b

PLEASE HELP!!
A claw arcade machine contains stuffed animals and mystery boxes. There are 72 items in the machine. Winning a stuffed animal has twice as many favorable outcomes as winning a mystery box. How many of each item is in the machine?

Answers

Answer:

50 stuffed animals and 22 mystery boxes.

Step-by-step explanation:

Firstly, we assign variables.

Let the number of stuffed animals be x and the number of mystery boxes is y

The probability of selecting a stuffed animal is x/72 while the probability is selecting a mystery box is y/72

Now, since the total probability can be 1:

This means that

x/72 + y/72 = 1 •••••••(i)

Help me *I will give brainliest

Answers

what’s the question ?

Answer:

32

Step-by-step explanation:

Just divide both sides by 12 because 960/12=80 so 384/12=32

The Spartans are planning a field trip. The trip costs $5 for each student ticket and a flat fee of $100 for the buses (no matter how many buses are used). Which expression would help the teachers find the total cost if n amount of students are invited to the field trip. *

A. 5 + n(100)
B. 5n + 100
C. 5(100) + n
D. n + 5n

Answers

Answer:

B

Step-by-step explanation:

The answer would be B (5n+100)
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