Mathematics Middle School

In 2222 days, students collected 813813 books to donate. Estimate the number of books students collected each day if the number was about the same each day. Use paper to show your thinking.



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Answers

Answer 1

Answer:

Step-by-step explanation: 6x+4(x+9) =136

Answer 2

Answer:

1808292486

Step-by-step explanation:

You just have to do 813813 X 2222 which gives us 1808292486.

Please mark be the Brainiest it would mean a lot

Related Questions

The width of a rectangular room is 80% of its length. If the length of the room is 20 meters, what is the area of the room? A= length x width

Answers

Answer:320ft^2

Step-by-step explanation:

80% of 20 is 16, because 80% is 4/5 and 20 divided by 5 is 4, multiplied by 4 is 16. Area is L x W, so 16 times 20 is 320, and don't forget unit of measurement, ft^2 for area

A=320^2!
Length x width = area

Question 5 (1 point)
Write the decimal 0.018 as a quotient of two integers.

Question 5 options:

18/100

18/10000

18/1000

18/10

Answers

C) 18/1000 because .18 is out of 100 so in this case you just add a zero!! :)

What is the 30th term of the linear sequence? -5, -2, 1, 4, 7​

Answers

Answer:

the 30th number would be "82"

Step-by-step explanation:

it is adding by 3

30 would be 82 and it is adding by 3

HELP ME PLEASE ASAP!!!

Answers

138.52804 or 138.5 when you round it to nearest tenth
138.53 or just 138.5

PLEASE HELP NO TROLLS
5. Find the measure of angle A. *

Answers

30 degrees. A triangle is 180. The right angle is 90.
90=7x-10+3x
add ten to both sides and combine like terms
100=10x simplify
10=x now substitute
3x
3(10)=30

estimate the quotient mentally
500 divided by 7
1394 divided by 9

Answers

Answer:

500/ 7 = 71

1394/9 = 154

Step-by-step explanation:

since rhe result are in decimals you can just round the number to a while number

500/7 is around 70 because 7 x 70 is 490
1394/9 is around 155 because 9 x 155 is 1395

Can someone plz help meeee!!!!

Answers

Answer:

0.14 and 0.19

Step-by-step explanation: The order is going up by 0.05 which leads me to believe the two numbers that are blank would have to be 0.14 and 0.19.

Estimate the answer by rounding each fraction to the nearest whole number and then subtracting.

Answers

it’s 27. 58 and 5/12 rounds down to 58, 30 and 5/7 rounds up to 31. 58-31= 27

Answer:

27

Step-by-step explanation: 58 and 5/12 rounds down to 58, 30 and 5/7 rounds up to 31. 58-31= 27

Solve. 55 divided by 12

A.) 4 1/2
B.) 12 1/4
C.) 7 4/12
D.) 4 7/12

Answers

55/12
12x4=48
55-48=7
4 7/12
D
The answer is D) 4 7/12

Matthew had to make a bridge for his math class. It had to be at least 1 1/2 feet long. Harold made a bridge that was 2/13 times as long as Matthew’s. Write and solve an equation that will help you figure out how long Harold’s bridge was. Explain the steps you took to solve the problem.

Answers

Answer:

Step-by-step explanation:

2 / 13 = 15.38% or 15.38..... If Matthew's bridge is 1 1/2 feet long which is 45.72cm then 45.72 + 15.38 = 61.1cm > convert into feet > 1.55194 ft.

What is the area of this figure?

Select from the drop-down menu to correctly complete the statement.

56
90
146
216

Answers

answer is:146
we got a rectangle that’s 40 (4x10)
2 triangles that r 25 so 50 (2[5x10/2])
then the bottom triangle that’s 56
that’s how i did it. add them up and then
146.
Answer is 146. The side is 18cm and the 14 I'm solve for total area by multiplying.

The variable in the equation 26 = 1 – 3r is r. Remembering the form ax + b = c, what are the values of the constants, a, b, and c in the equation?

Answers

The value of the constant a, b and c in the equation are -3, 1 and 26 respectively.

What is variable?

Variable are numbers represented by letters in a mathematical equation. Therefore,

26 = 1 - 3r

Using the form ax + b = c, where a, b and c are constant.  

The value of a, b and c in the expression 26 = 1 - 3r can be solve as follows:

-3r + 1 = 26

Therefore,

a = -3b = 1c = 26

learn more on variable here: https://brainly.com/question/12035180

Answer:

A=-3

B=1

C=26

Step-by-step explanation:

Find the volume of the sphere. Round your answer to the nearest tenth.

Answers

Answer:

[tex]0.5236 ft^{3}[/tex]

Step-by-step explanation:

V = [tex]\frac{4}{3} \pi r^{3}[/tex]

V = [tex]\frac{4}{3} \pi 0.5^{3}[/tex]

V = 0.5236

It’s 1.5*2 x Pi x 4/3

What is the area of the polygon in square units?
Correct answer gets brainliest

Answers

Answer:

72

Step-by-step explanation:

Can someone round this to the nearest tenth
3.14 x 4 x 4 x 7
or
3.14 x 7 x 7 x 4
A- 124.6
B- 87.9
C- 97.5
D- 78.9

Answers

Answer:

I think its A

Step-by-step explanation:

I did the math and thats what i got even rounded up

The value of the expression 3.14 x 4 x 4 x 7 is  351.4 and for expression 3.14 x 7 x 7 x 4  is 615.4.

To round the expression to the nearest tenth, we need to evaluate it first. Let's calculate each expression:

3.14 x 4 x 4 x 7 = 351.36

3.14 x 7 x 7 x 4 = 615.44

Now, let's round each result to the nearest tenth:

Rounding 351.36 to the nearest tenth gives us 351.4

Rounding 615.44 to the nearest tenth gives us 615.4

Based on the given options, neither result matches exactly.

However, option A (124.6) is the closest rounded value to 351.4.

To learn more on Expressions click:

https://brainly.com/question/14083225

#SPJ6

1b. $1 6​− 1 3​ Lin said the value of this expression is $ 1 6​. Is she correct? Explain or show your reasoning to prove your answer

Answers

Answer:

No she is not correct

Step-by-step explanation:

She is not correct because “value of expressions” mean the result which for this it is 16-13 =3 and she is wrong. please mark me brainly! Hope this helps! :D

Divide: 5 and 2/3 divided by 3/2

Answers

Answer:

3.77777777778

Step-by-step explanation:

3.8 (rounded)

The answer is 3.8
Hope I helped:3

find the value
100cm-10mm

Answers

Answer:

99 cm

Step-by-step explanation:

100 cm - 10 mm = 99 cm

hope it helped u..

99cm because all you have to do is subtract

HOW DO YOU FIND THE MISSING SIDE LENGTH ON SIMILAR TRIANGLES!!! PLEASE HELP...

Answers

Answer:

Do What He or She Said .................. maybe you will find ur answer

Step-by-step explanation:

LIST THE NUMBERS FROM 1 TO 10

Answers

1 2 3 4 5 6 7 8 9 10 :)

Answer:

1 2 3 4 5 6 7 8 9 10

Step-by-step explanation:

These are they

A tailor used 6 2/3 yards of fabric to make hats. The amount of fabric needed to make each hat is 5/6 yard. How many complete hats did the tailor make?

Answers

6 2/3 = 20/3 = 40/6

40/6 divided by 5/6
= 40/6 • 6/5
= 40/5
=8
The answer above is corrrexr

Find the discriminant and the number of real roots for this equation.

4x2 + 12x + 9 = 0

A. -144; one real root

B. -144; no real roots

C. 0; one real root

D. 0; two real roots

Answers

Discriminant and the number of real roots for this equation are 0, one real root.

What is discriminant?

Discriminant of a polynomial in math is a function of the coefficients of the polynomial.

The discriminant of a quadratic equation ax2 + bx + c = 0 is in terms of its coefficients a, b, and c. i.e.,

Discriminant = [tex]\sqrt{b^{2} -4ac}[/tex]

Given equation

[tex]4x^{2} +12x+9 = 0[/tex]

Discriminant = [tex]\sqrt{b^{2} -4ac}[/tex]

= [tex]\sqrt{12^{2}-4(4)(9) }[/tex]

= [tex]\sqrt{144-144}[/tex]

D = 0

Therefore, number of real roots is one.

Hence, discriminant and the number of real roots for this equation are 0, one real root.

Find out more information about discriminant here

https://brainly.com/question/17376136

#SPJ3

Plsssssssss Help!!!
What is the distance between points A(-3,4) and B(1,-2)? Round to the nearest 10th if necessary.

A. 6.08
B. 6.1
C. 6.5
D. 7.2

Answers

Answer:

D. 7.2

Step-by-step explanation:

6^2 +4^2 = c^2

sqrt 36 + sqrt 16 = c^2

c^2 = sqrt 52  =  7.21110255 = 7.2

Answer:

Step-by-step explanation:

Step-by-step explanation:

Distance between two points is given by

|xy|=√(x2-x1)² +(y2-y1)²

So putting the points A(-3,4) B(1,-2) into the equation

|AB|= √(4--3)²+(-2-1)²

=√(7)²+(-3)²

= √49+9

= √58

=7.2

A science classroom has 5 turtles and 7 frogs. What is the ratio of FROGS to TOTAL animals?
5:7
7:12
5:12

Answers

Answer:

7:12

Step-by-step explanation:

there is 5 turtles and all 5 turtles plus 7 frogs = 12

(5+7+12)

7:12

Answer:

7:12

Step-by-step explanation:

Frogs = 7

Total= 7+5 =12

Ratio = 7:12

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

Answers

Answer:

-10x+3/2 and -2(5x)+(-2)(-3/4)

The volume of the rectangular prism is 16 cubic cm. The length is 2 and 1/3 cm and the width is 4 cm. What is the height?

Answers

Answer:

The answer is 1 and 5/7 cm

Step-by-step explanation:

Find the area of this figure.

Answers

Answer:

144 ft^2

Step-by-step explanation:

We can split this shape into a rectangle and into a trapezoid. The rectangle we can use is the one with side lengths of 12.4 and 6, and to find this area we just multiply these two to get 74.4.

The trapezoid we can make has bases of 5 and 12.4, and has a height of 8 ft. The equation representing the height of a trapezoid is [tex]\\\frac{1}{2} (b_{1}+b_{2} )*h[/tex], and plugging in to this equation we get:

1/2(5+12.4)*8

1/2(17.4)*8

8.7*8

69.6

Finally, we add the area of the trapezoid and rectangle together to get 69.6+74.4=144

Explain why is [tex]5w^2 +8w[/tex] when it says plus 8 times the width of the pen?

Answers

Answer:

it says its 5 more than 8 times the width

Step-by-step explanation:

8 times the width would be 8w then 5 times more of that would be 5w squared

1. What is the ratio of circles to all shapes? im failing math rn so uh yeah can someone help​

Answers

Answer:

2:9

Step-by-step explanation:

there's 9 shapes total and 2 of them are circles

2/9 is the answer :)))))))))

Taut and Saint determine that once the shop opens they can earn $12 in profit for every $1.00 spent on all the purchases above. How much money can Taut and Saint expect to make in profit?

Answers

The answer would be 11

Answer:

this is the answer 11

do u go to ms 358

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