Mathematics Middle School

The circle graph below shows that of the 440 students at Washington Middle School 40% are in grade 8 what is the total number of students in grade 8 Class

Answers

Answer 1
176 students are in the grade 8 class. Multiply 440 by 0.4 or 40%. 
Answer 2
So to find this, you would simply find 40% of 440. You do this by multiplying 440 by 0.4 (or 0.40). This results in 176. So, there are 176 students at Washington Middle School who are in 8th grade. Hope this helps!

Related Questions


Which product is negative?

−4⋅(−6)⋅(−3)⋅(−5)
−3⋅5⋅(−6)⋅4
−7⋅(−3)⋅(−9)⋅0
−3⋅4⋅(−2)⋅(−7)

Answers

negative

answer

−3⋅4⋅(−2)⋅(−7)
The last expression is negative. The first and second are positive, because there are an even amount of negative digits. The third expression equals to zero, which is neither negative or positive. The last expression is negative because there is an uneven number of negative digits. It's the same reading why any negative number to the power of 2,4,6,8,..., is positive and any negative number to the power of 1,3,5,7,9,..., is negative

A rectangular flower garden is 8 ft longer than its width. It is surrounded by a brick wall 2 ft wide. The area of the walk is 176ft squared. Find the dimensions of the flower garden

Answers

The dimentions of the rectangular flower garden is
8+x+8+x
16+2x * x = 176

x^2=80
x=4 sqrt(5)
Dimentions:
Length of parallel walls: 8+4 sqrt(5)
Other Walls: 4 sqrt(5)

it takes sami 10 minute to shovel the snow 20 m2 area. he charges 5 dollars for half an hour . how much will he charge to shovel the snow of a sidewalk that has a dimensions of 2m x 40m.

Answers

First, we need to find the area of the sidewalk that he will be shoveling:
[tex]A=l*w[/tex]

In this case, l=2m and w=40m. Then we have
[tex]A=2*40=80m^{2}[/tex]

We know that he can shovel [tex]20m^{2}[/tex] in 10 minutes, so this would take him 40 minutes since 20*4=80. Now we just need to figure out how much this will cost. Since he charges $5.00 per half hour, we need to get 40 minutes in terms of half hours:
[tex]\frac{40}{30}=\frac{4}{3}[/tex]

Last, we just multiply his half-hour rate by the amount of half hours he is shoveling for:
[tex]\frac{4}{3}(5)=\frac{20}{3}[/tex]

I'll let you simplify the fraction.

How do I solve this?

Answers

First, you isolate the absolute value.

4 + 8|2b| = 84

8|2b| = 80

|2b| = 10

Now to solve the absolute value part, set what is inside the absolute value equal to 10 and set it equal to -10 and solve both equations.

2b = 10   or   2b = -10

b = 5   or b = -5

If bookshelf is 28 inches long how many 7/8 inch thick books will it hold

Answers

so it is 28/(7/8)
which is 32

Solve each equation. Check your solution.

3 1/10s = 6 1/5 = ?

2 2/9 = -4/5m = ?

-2 4/5 = -3 1/2n = ?

Answers

converting all to improper fractions
31/10s = 31/5
5×31s=31×10
155s = 310
s=310/155= 2


20/9=-4/5m
5×20=-4×9m
100=-36m
m=100/-36 = 72 28/36 = 72 7/9


-14/5=-7/2n
-14×2=5×-7n
-28=-35n
n =-28/-35
n=28/35

What two ratios are equivalent to 11/12

Answers

(11 x2) (12 x 2)
22 : 24 

or 

(11x3) (12 x 3)
33 : 36

both are equivalent to 11/12


4 2/5 - 1 7/10
2 3/10
2 7/10
3 1/10
2 9/10

Answers

4 2/5 - 1 7/10
= 4 4/10 - 1 7/10
= 3 14/10 - 1 7/10
= 2 7/10

answer
2 7/10
Hello,


4 2/5 - 1 7/10
= 4 4/10 - 1 7/10
= 3 14/10 - 1 7/10
= 2 7/10

Hope this helps

Divide.

−513÷234

−1256

−7512

−13133

−11112

Answers

Answer:

2.19, -1,253, -8,765, -21,898, -33,010

Step-by-step explanation:

Answer: The answer is not 2.19, -1,253, -8,765, -21,898, -33,010 it is -1 31/33

Step-by-step explanation: This question was on my quiz and I got it right.

A movie made $297.2 million in 22 weeks. How much did the movie make on average each week?

Answers

Final answer:

The movie made an average of $13.509 million each week.

Explanation:

To find the average amount of money the movie made each week, we need to divide the total amount made by the number of weeks. In this case, the movie made $297.2 million in 22 weeks. To find the average, we divide $297.2 million by 22, which gives us an average of $13.509 million per week.

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Erase 3/5 of the shape part below. How much of the original figure will be shaded?

Answers

Okie doke. So, to find what 3/5 of the shape would be above, we should do 2/3 * 3/5. When you multiply straight across, you get 6/15 or 2/5 in simplest form. 2/5 of the original figure will be shaded after you erase 3/5 of the shaded part. The answer is 2/5.

The amount of the original figure shaded is 4/15

How to find how much left

In the figure the shaded part is 2/3.

To remove or erase 3/5 of the shaded part we find the 3/5 and subtract it

= 3/5 * 2/3

= 6/15

how much of the shaded figure left

= 2/3 - 6/15

= 4/15

The amount of the original figure shaded is 4/15

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the sum of two numbers is 70 and their difference is 24.Find the two numbers

Answers

The two answers are 23 and 47. You would subtract 24 from 70 then divide by 2 which would equal 23 then add the 24 back to it which is 47. 23 plus 47 equals 70.

The two numbers whose sum is 70 and has a difference of 24 is 23 and 47

Let

x = smaller number

y = Larger number

y + x = 70 (1)

y - x = 24 (2)

subtract (2) from (1) be to eliminate y

x - (-x) = 70 - 24

x + x = 46

2x = 46

x = 46 / 2

x = 23

substitute x = 23 into (1)

y + x = 70

y + 23 = 70

y = 70 - 23

y = 47

Therefore, two numbers whose sum is 70 and has a difference of 24 is 23 and 47

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A relation is a function if _____.

there is exactly one input for each output

there is exactly one output for each input

there is more than one input for each output

there is more than one output for each input

Answers

The answer to the question  is B

C;

how much will 167 go into 44756

Answers

44,756 divided by 167 is 268.

167 will go into 44756 exactly 268 times, I hope this helps


Which set is a function?

A)
{(0,3), (3,0), (0,4), (4,0)}


B)
{(0,2), (2,0), (4,6), (6,4)}


C)
{(2,6), (3,6), (4,6), (2,0)}


D)
{(6,2), (2,0), (4,6), (6,4)}

Answers

b, short explanation remember the sets are set up like (x,y) in a set there should be no matching x points so if it matches it's not a function :)

long explanation: these are (x,y) sets {(0,3), (3,0), (0,4), (4,0)} the first choice shows that there are two X solutions if they are equal to 0 (0,3) (0,4) so this cant be a function.

second choice {(0,2), (2,0), (4,6), (6,4)} does not have two X solutions so this is a function
third choice{(2,6), (3,6), (4,6), (2,0)} has two X solutions if x is equal to 2
and the last choice {(6,2), (2,0), (4,6), (6,4)} has two X solutions if x is equal to 6
hope i helped! if i did please give me brainlest :)

Final answer:

Set B is the only set that represents a function.

Explanation:

A function is a relation in which each element of the domain is mapped to a single, unique value in the range. In set A, there are two distinct ordered pairs with the same first element, making it not a function. In set B, each member of the domain occurs in just one ordered pair, making it a function. Therefore, set B is the only set that represents a function.

Help me plz asap i need the first question dont answer till u see file

Answers

okay, so with the link we can tell this:

flour and baking soda are equal ratios
salt is one half the ratio of flour/baking soda

A: correct
flour and baking soda as equal ratios

B: incorrect
salt is at an incorrect ratio to flour

C: correct 
salt is at a correct ratio to baking soda

D: incorrect
salt is at an incorrect ratio to baking soda

E: correct
baking soda is at a correct ratio to salt

answers: A, C , E

Count the total number of atoms in CaCo2

Answers

3. Ca= 1 atoms Co2= 2 atoms, so your answer is 3 atoms

You need a piece of fabric 5 12 yard long. Which of these is the smallest piece of fabric that would work?

Answers

The answer is 1/2 a yard would be the smallest piece of fabric that would work.

Every week, Mr. Kirkson uses 316 gallon of water to water every 13 square foot of his garden.How many gallons of water does Mr. Kirkson use per square foot to water his garden each week?

Enter your answer in the box as a fraction in simplest form.

Answers

24 4/13 gallons are used to water one square foot of his garden.

Omar owns a sandwich shop, and his best selling sandwich is the BLT. When making BLT sandwiches, it takes 3/4 of a pound of bacon to make 4 sandwhiches. he uses 1 1/20 pounds of bacon for every 2 tomatoes used and 5 tomatoes for every full head of lettuce used. If Omar is making enough BLT sandwiches to use 2 full heads of lettuce, then he is going to use blank pounds of bacon and will make a total of blank blt sandwiches.

Answers

Answer:

He is going to use 21/4 pounds of bacon.

He will make a total of 28 BLT sandwiches.

Step-by-step explanation:

It is given that:

for every full head of lettuce used the number of tomatoes used are: 5

This means that when he used 2 full heads of lettuce then the number of tomatoes which are used are: 10

( since for 1 head of lettuce --- 5 tomatoes are used.

and for 2 head lettuce---- 5×2=10 tomatoes are used )

Now, it is given that for every two tomatoes used 1 1/20 pounds of bacon is used.

i.e. for every 2 tomatoes --  21/20 pounds of  bacon is used.

Hence, for 1 tomato---   (21/20)×(1/2) pound of bacon is used.

i.e. for 1 tomato ---- 21/40 pound of bacon is used.

Hence, for 10 tomatoes ---(21/40)1×10 pounds of bacon is used.

i.e. for 10 tomatoes ---- 21/4 pounds of bacon is used.

Now, it is given that:

with the help of 3/4 pounds of bacon 4 sandwiches are made.

Hence, with the help of 1 pound of bacon  16/3 sandwiches will be made.

Hence, with the help of 21/4 pounds  of bacon  (16/3)×(21/4) sandwiches could be made.

i.e. with the help of 21/4 pounds of bacon 28 sandwiches could be made.

Final answer:

To calculate the amount of bacon Omar will use to make BLT sandwiches and the total number of sandwiches, we follow the given conversion factors. We set up proportions to find the amount of bacon used for the total sandwiches and the two full heads of lettuce. The total number of sandwiches is found by dividing the number of tomatoes by 5.

Explanation:

To calculate the amount of bacon Omar will use to make BLT sandwiches and the total number of sandwiches, we need to follow the given conversion factors. 1. For every 4 sandwiches, 3/4 of a pound of bacon is used. So, we can set up a proportion: 3/4 pound / 4 sandwiches = x pound / total sandwiches. Solving for x will give us the amount of bacon used for the total sandwiches. 2. For every 2 tomatoes, 1 1/20 pounds of bacon is used. Since Omar is using 5 tomatoes for two full heads of lettuce, we can set up another proportion: 1 1/20 pounds / 2 tomatoes = x pound / 5 tomatoes. Solving for x will give us the amount of bacon used for the two full heads of lettuce. To find the total amount of bacon used, we add the amount used in the sandwiches to the amount used for the lettuce. Finally, the total number of sandwiches can be found by dividing the number of tomatoes by 5.

The Lovin' Lemon Company sells a 4-gallon jug of lemonade for $24. The Sweet and Sour company sells an eight-pack of one quart bottles of lemonade for $16. Which company has a higher price? Explain your answer.

Answers

Sweet and Sour, as 8 quarts is only 2 gallons, for more than half the price ( if they were equal) than the price if the Lovin' Lemon companies lemonade.

1. In △ABC, GE=27 in.

What is the length of BE¯¯¯¯¯?

2. In △JKL, LO=104 cm .

What is the length of NO¯¯¯¯¯¯?

3. In △RST, SU=45 in.

What is the length of UX¯¯¯¯¯¯?

1.  81
2. 52
3. 15

Answers

1. In △ABC, GE=27 in.

BE = 3(27) = 81

What is the length of BE¯¯¯¯¯?
answer
1.  81

2. In △JKL, LO=104 cm .
NO = 1/2(LO) = 1/2(104) = 52

What is the length of NO¯¯¯¯¯¯?

answer
2. 52

3. In △RST, SU=45 in. 
UX = 1/3(SU) = 1/3(45) = 15

What is the length of UX¯¯¯¯¯¯?
answer

3. 15

Least to greatest: 0.003, 3%, 3/10,3x10

Answers

.003, 3% (.30), 3/10(30), 3x10(30)
They were already in order.
0.003, 3%, 3/10, 3 x 10

0.003,

3% = 0.03

3/10 = 0.3

3 x 10 = 30

0.003, 3%, 3/10, 3 x 10 is your answer

hope this helps

this unit is functions can you tell me rhe pints to graph with the picture?

Answers

a) f(x) + 2: shift the graph 2 units upward

b) f(x - 4): shift the graph 4 units rightward

c) f(-x) - 5: reflect accross the y -axis and shift 5 units dwonward

d) - f(x + 3): shift 3 units leftward and reflect accross the x-axis

e) 2f(x): scale by 2, this will. enlarge the graph vertically

f) f(1/3x): scale by factor 1/3, this will enlarge the graph horizontally

g) f(x - 1) + 3: shift the graph 1 unit rightward and 3 units upward

g) f(2x) - 4: scale the graph by 2 and shift the graph 4 units leftward

In mr. Klein's class, 40% of the students are boys. What decimal represents the portion of the students that are girls

Answers

I think the answer is .6, because if 40% of the students are boys, then 60% of the students are girls. 60% as a decimal is .6. Hope this helps!

The percentage of students that are girls in Mr.Klein's class is 60 % and the decimal value is 0.6

What is an Equation?

Equations are mathematical statements with two algebraic expressions flanking the equals (=) sign on either side.

It demonstrates the equality of the relationship between the expressions printed on the left and right sides.

Coefficients, variables, operators, constants, terms, expressions, and the equal to sign are some of the components of an equation. The "=" sign and terms on both sides must always be present when writing an equation.

Given data ,

Let the total number of boys in the class be = A

Let the total number of girls in the class be = B

Now , the percentage of students in the class that are boys = 40 %

So , ( 40/100 ) of the students are boys

A = 40/100

A = 0.4

Now , the remaining students in the class are girls

So , 100 - 40 = 60

The percentage of students in the class that are girls = 60 %

So , ( 60/100 ) of the students are girls

B = 60/100

B = 0.6

Hence , The percentage of students that are girls in Mr.Klein's class is 60 % and the decimal value is 0.6

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Is 2(6-3x) + x equivalent to 2(3x) + x

Answers

NO. You cannot subtract 3x from 6, since they are NOT like terms. 
You can think of it as the 6 does not have an x term, but in 3x, there is an x term. 
Answer:  When "x = 1" ;  "2(6-3x) + x"  DOES EQUAL "2(3x) + x" .
___________________________________________________

2(6-3x) + x = 12 - 6x + x  = 12 - 5x ;

2(3x) + x = 6x + x = 7x ;

Does:  12 - 5x = 7x ?

Add "5x" to each side of equation:

12 - 5x + 5x = 7x + 5x ;

to get:

12 = 7x + 5x ;

12 = 12x ; 

Divide each side of the equation by "12" ; 

12 / 12 = 12x / 12 ; 

to get:  1 = x ;  ↔ x= 1 ;
_______________________________________
Answer:  "When "x = 1" ;  "2(6-3x) + x"  DOES EQUAL "2(3x) + x" .
___________________________________________________

what is 1.59 in expanded form

Answers

I believe this would be 1+.0.5+0.9
hope this helps!
1.59= 1.0+0.50+0.09 will be correct answer

1. Write 6 less than the product of 2 and x as an algebraic expression

2. Write 3xxyyy using exponents

Answers

1. 2x-6

2. 3x^2y^3

Those should be the answers, I am 100% sure number 2 is correct and number 1 should be as well

What is the slope of this line?

Answers

The slope should be y = -1.
so you would look at the axis (it says it there).
since it is closer to nine, the answer would be nine.
In the negative section I think it is -10. It is close.
Hope this helped :D

Plzzzzzzzzzz help me

Answers

The answer would be the top right graph where none of the lines intersect since it shows that there is no possible real solutions for the system if none of the lines intersect on a certain point.

Remember: If the lines intersect, there is a solution; if the lines do not intersect, there is no solution; if the lines fall on the same line, or the equations are equivalent, then the solution is all real numbers.

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