Mathematics Middle School

Marlye posted a story on her blog. On the first day there were 80 responses and on the second day there were 180 responses. What percent is the increase, 100, of the original number of responses, 80?
a. 55%
b. 80%
c. 100%
d. 125%

Answers

Answer 1

100/80 = 1.25 or 125%

Answer 2
the answer is D-125%

Related Questions

Referring to the Fig. in Question #26, approximate from the graph
the car's distance after it has traveled for 5 seconds.

Answers

its between 300 and 350

i need help on both of them now !!!!!!!

Answers

Answer:

4/5= 12/15 he had 3/15ths left meaning he painted 2/15th there's 1/15 left

The median is 1/5

4/5=12/15 he had 3/15 left. he painted 2/15 there’s 1/15 left

Referring to the figure, find the surface area
of the pyramid shown. Round to the nearest whole number.

Answers

Answer:

297 is the surface area

Step-by-step explanation:

Ok this problem is very simple.

First lets define some equations.

Area of a triangle: A = 1/2BH

A = Area   B = Base   H = Height

This equation works for right triangles only.

(because 2 right triangles make a square which is why it's multiplied by 1/2 because it's half a square).

Area of a square: A = BH

Surface area equals all the areas of each side added together.

First lets find the area of one of the triangles.

We know 11 is the base and 8 is the height but the triangle isn't a right triangle.

To make it a right triangle divide the base by 2 so 11/2.

You will get 5.5.

Now find the area!

A = 1/2BH

A = 1/2(5.5)(8)

A = 1/2(44)

A = 22

So now we found the area of the right side as a right triangle but you must multiply it by 2 to get the entire side (because we divided the base by 2).

22(2)=A

44=A

44 is the area of one side of the pyramid but there are 3 other sides (not including the base).

So just do:

44+44+44+44 = A

176 = A

Surface area for the triangles is 176!

Now we must find the area of the square.

A = BH

A = 11(11)

A = 121

Total surface area is all the areas added together so it's:

121+176=A

297

I REALLY NEED HELP ASAP.

Answers

Answer:

The order in least to greatest is:

D

C

A

B

Step-by-step explanation:

If you divide the cost by the number of ounces, you find the cost per ounce.

Answer:

Coffee D, Coffee C, Coffee A, Coffee B

Step-by-step explanation:

We need to find the cents per ounce ratio

Coffee A: 3.67/11 = 0.33363636363 (0.33)

Coffee B: 11.64/20 = 0.582 (0.59)

Coffee C: 6.28/24 = 0.26166666666 (0.26)

Coffee D: 6.92/30 = 0.23066666666 (0.23)

Then put them in order

Referring to the figure, a building casts a
shawdow 18 feet long. A woman standing near the
building is 5 feet 8 inches tall and casts a
shadow 4 feet long. What is the height of the
building in feet and inches?

Answers

Answer;

Explanation:

160
160
is
the answer to your question !

Can someone pls help and also show me how to show work plsss

Answers

Answer:

25%

I hope this helps you...

Answer:

25%

Step-by-step explanation:

10: 40*100 =

(10*100): 40 =

1000: 40 = 25

(you can message if more questions)

Please help answer this like really

Answers

the problem is you can’t simplify 3/7

muust help in cristes

Answers

The rules for the signs of quotients are the same as the rules for the signs of products.
the quotient of two positive fractions is positive

At a small airport, 3 out of 27 suitcases ar misplaced each day. If 810 suitcases are processed, how many suitcases would you expect to be misplaced?

Answers

Answer:

90 suitcases would be expected to be misplaced

Step-by-step explanation:

Given 3/27

810 / 27 = 30

30 x 3 = 90

Answer:

90

Step-by-step explanation:

cuz 3/26=1/9

so, 1/9 of 810 is 90.

easy question on this picture to earn a little bit of points

Answers

Answer:

That is how you become a human ;) LOL

Step-by-step explanation:

Be born, grow up, and die

Please need help! 10 points!!

Answers

Answer:

I cant see that.

Step-by-step explanation:

c&d are the correct answers

Multiply. Enter the product in the simplest form.

[tex]\frac {2}{5}{2}[/tex] x 5/7


The product is _____?


Please tell me how you got it very clearly


Any spam, nonsense, links, and anything that does not relate to this question will get deleted. Thank you.

Answers

12/5 x5/7=25/84
= 1.714285714285714

What is 5/7 = x/3 proportion?

Answers

i think it’s 21/5 !!!!

Answer:

4.2

Step-by-step explanation:

Write an expression to represent the situation and answer the question. Shana took a test with 50 questions. She lost 2 points for each of the 5 quedtions she got wrong. She got 3 extra credit questions correct and recived 5 points for each. What is the total number of points she gained or lost overall

Answers

If I’m right it’s 15 points she gained and 10 points she lost if you combine them it’s 25 points
50 - (5•2)+(5•3)=
50 - (10) + (15) =
40 + 15 =
55 points total
She lost 10 points then turned around and gained 15

Can anyone write me a definition of what Proportional Relationships are? (Must be exactly 5 words or less !! :D)

Answers

Two variables with equivalent ratios

two variable with equivalent ratios

I don't get this one either

Answers

Answer:

fist of all it's no she won't be able to complete the book

Step-by-step explanation:

a) no
b) 60 mins and 14 secs

4,715 ÷ 23 i really need help

Answers

Answer:

205

Step-by-step explanation:

calculator is your best friend here

The answer to this problem is 205

classify the equation 6(x + 2) = 5(x + 7) as having one solution, no solution, or infinitely many solutions

Answers

Answer:

Step-by-step explanation:

The equation has one solution.

6(x+2)=5(x+7)

6x+12=5x+35

6x+12-5x=35

6x-5x=35-12

x=23

Therefore, the equation has ONE solution.

there is only one solution to the equation. it is x=23

Help please :]!!
please be right,

Answers

I think it’s c I had this question lol
it’s c ! gl on ur work ^^

Shilo is trying to compute the value of 27 + 55 + 13. She adds 27 + 13 to get 40, and then adds on 55.

Which of the following properties is Shilo using?

A.commutative
B.distributive
C.identity
D.associative

Answers

Answer: the answer is D

Step-by-step explanation:

pls help its 10 pm I couldn't do it bc I had it do an important thing pls help me it's for tomorrow I will give u brainliest and rate u but pls help (；′⌒`)

Answers

Answer:

See explanation

Step-by-step explanation:

1 - 12 (not writing the question number but all the answers are in order)

-15273. i dont know-38376-200-3150-4110 i dont know120-60

13 - 22 Basically if the number is an absolute value, (by the way a number is an absolute value if it is in these lines: | |) then that simplifies to the positive of that number, always as long as it's inside the two lines.

13. 114. 915. 2316. 10717. 4518. 1919. 020. 4

|6| - | -2|

6 - 2

4

21. 12

|-8| + 4

8 + 4

12

22. 0

|-12| - 12

12 -12

0

for the last two see the file

Answer:

i can only help with 13 - 22 and the number lines

Step-by-step explanation:

so this is absolute value so basicly always positive

13. 1

14. 9

15. 23

16. 107

17. 45

18. 19

19. 0

20. 6 - 2 = 4

21. 8 + 4 = 12

22. 12 - 12 = 0

hope this helps

Item 5
Multiply.

(−3.2)⋅1.7


−5.44

−1.5

1.5

5.44

Answers

Answer:

-5.44 is the answer. You multiply the figures

The answer is D -5.44

Identify the slope of the line: y = -3x + 6

Answers

Answer: The slope is -3 and the y-intercept is 6

Step-by-step explanation:

I dont understand this so can someone drop me the solution as well? thx

Answers

It’s the first one because if 5=3.75 and 10=7.5 and 12=9 they go up the same amount each time where as the second one goes 3=.4 and 4=1.2 and 10=6 the second one just doesn’t make sense so it would be the the one on the left :) hopefully that makes sense

Evaluate.

7+22⋅6+23−6


31

33

68

I don't know.

Answers

Answer:

7+22(6)+23-6

Step-by-step explanation:

The answer is 156 so its not on here

So....

Answer:

156

Complete multiplication

Then addition

Addition again

Subtraction last

I need help on both of them pls help me...

Answers

.8 where cooked by the rooms combined 2) 25% pick blue and red
For question number 3 you would add 24+13+38. And that would give you 75. Making the fraction 75/100, in simplest form it would be 3/4. So the answer for number 3 is 3/4

For number 4: you add 0.5 and 3/10 together, but you can’t add a decimal and a fraction so we will convert the decimal to a fraction, 0.5 is equivalent to 1/2 so we will do 1/2 + 3/10. To add you have to find the most common multiple which would be 10. So now the equation is 5/10 + 3/10. Now all you have to do is add the numerators so 5/10+3/10=8/10. 8/10 in its simplest form is 4/5. Your final answer should be 4/5.

I need help like Asap and who ever anwer this question i give you a branilest so .Mateo is an artist .He sold three paintings for $523,$278 and $351 .Estimate the total that mateo earned from these paintings .

Answers

523+278+351= 1,152
hope this helps, good luck on the rest of the assessment!!

Answer:

Step-by-step explanation:

$523+$278+$351=$1152

Round to the nearest ten: $1150  

Round to the nearest hundred: $1200

Round to the nearest thousand: $1000

I need help with Part A and B

Answers

Answer:

Part A) 700 Snack Bags

Part B) [$]1225.00

Step-by-step explanation:

Pretzels and cheese puffs make up 30% (0.30) of the sales which means 210 is 30% of the total bags they sold. You could set up a ratio like this where 1 represents 100%:

210/.30 = x/1

If solved out, you find there are 700 bags total and you can check it by finding that 210 is 30% of 700.

Part a)700
Part b)1225$

help??????? i’m no good at math

Answers

Answer:

-2(3/2x+5)>5(2x-2)+3x

The second option

Step-by-step explanation:

If you distribute the right side:

5(2x-2)+3x

10x-10+3x

You can combine 10x and 3x because they contain the same variable.

The rabbit population in a certain area is 500% of last​ year's population. There are 1,300 rabbits this year. How many were there last​ year?

Answers

There were 260 rabbits last year.

We know that last year was the original population as 100%. The population is now 5 times higher, as 100% x 5 is 500%.

To find the original rabbit population, we would then divide this years population of 1300 by 5, to get 1/5 aka 100% of the population. This number is 260

500/100=5
1300/5=260
260 rabbits hope this helps
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