a box of chalk contains 10 pieces. how many pieces of chalk are in 40 boxes

Answers

Answer 1
10 x 40 = 400 so the answer is 400 pieces of chalk.
Answer 2
it might be 400 because you might have to multiply


Related Questions

What’s the answer for this math question

Answers

3 11/12 is the answer to the question.

If the sales tax in your city is 4.4%, and an item costs
$3 before tax, how much tax would you pay on that item?
Round to the nearest hundredth or cent.

Answers

Simply take 4.4% of $3:


0.044 * 3 = 0.132


You would pay $0.13 tax on a $3 item.

Draw algebra tiles to model the given two step equation -3 = 5 - 4x

Answers

Your answer is negative 2

A group of preschoolers has 63 boy and 27 girls. What is the relationship of boys to all children?

Answers

63+27 = 90 total children

boys to all children ratio

63:90

What is the value for x?



Enter your answer in the box.

Answers

the answer is 11.5 if your looking for x

A video store offers two types of rental cars. Each rental card is good for six months. The gold rental card costs $25 plus $1.75/rental. The silver rental card cost $10 plus $3.25/rental. Explain why someone would prefer one card over the other.

Answers

Final answer:

When choosing between the gold and silver rental cards, it is important to consider the frequency of movie rentals and the associated costs.

Explanation:

When deciding between the gold and silver rental cards, there are a few factors to consider.

The gold rental card has an initial cost of $25 and then charges $1.75 per rental. On the other hand, the silver rental card has an initial cost of $10 and charges $3.25 per rental.

If you rent movies frequently, the silver card may be a better option because even though it has a higher initial cost, the lower charge per rental will result in lower overall cost. However, if you don't rent movies often, the gold card may be a better choice because the lower per-rental cost will offset the higher initial cost.

An aquarium with a square base has no top. There is a metal frame. Glass costs 8 dollars/m^2 and the frame costs 7 dollars/m. The volume is to be 20 m^3. Express the total cost C in terms of the height h in meters. (Hint: work out the cost of the glass and frame separately.)

Answers

Let x = one of the side lengths of the base.
Then area of the base = x². So volume of the base = x²h.
That gives us x²h = 20. Solving for x, we get x = √(20/h²).

Glass is needed to cover the sides of the aquarium. There are 4 sides and 1 base. Area of a side = hx = h√(20/h²). Area of the base = x² = 20/h. Total area of glass = h√(20/h²) + 20/h. So the cost for glass = 8 * [h√(20/h²) + 20/h] = 8 h√(20/h²) + 160/h.

Metal frame is needed along the edges of the sides. There are 4 edges on the top, 4 edges in the bottom and 4 vertical edges. So the total length of metal frame = 4x + 4x + 4h = 8 √(20/h²) + 4h. Then the cost for metal frame = 7 * [8 √(20/h²) + 4h] = 56 √(20/h²) + 28h.

So the total cost = 8 h√(20/h²) + 160/h +  56 √(20/h²) + 28h
   

A certain computer can perform 10 to the 5th power calculations per second. How many calculations can it perform in 10 seconds?

Answers

Well, first, 10 to the 5th power is 100,000. So, it can calculate 100,000 per second. The question asks how many calculations can it perform in 10 seconds, so you are going to do 100,000x10. Your answer should be 1,000,000. So, it can calculate 1,000,000 in 10 seconds!

Answer:

Computer can do the calculations = [tex]10^{6}[/tex] in 10 seconds

Step-by-step explanation:

It is given in this question that a certain computer can perform number of calculations = [tex]10^{5}[/tex] per second

It has been asked that how many calculations it can perform in 10 seconds.

Since number of calculations in t seconds can be represented by

Number of calculations = Calculations done in one second × t

Where t = time

By replacing t = 10 seconds

Number of calculations = [tex]10^{5}\times 10[/tex]

                                       = [tex]10^{6}[/tex]

Computer can do the calculations = [tex]10^{6}[/tex] in 10 seconds

Rotate rectangle ABCD clockwise 90º about the origin. Label A' B' C' D' respectively. What are the coordinates of the new figure?

Answers

The formula to use would be (x,y) to (y,-x). So, the points are shown, and i will not right them down because you can see them yourself, but I can show you what they will look like afterwards. A=(-2,-2), B=(-5,-2), C=(-6,-6), D=(-2,-6). You can then draw them in and see how they look like after they are rotated.

If you can buy one fruit basket for $30 then how many can you buy with $60?

Answers

you can buy 2 baskets with $60
You could buy 2.

60 is twice as much as 30, giving you the answer of 2.

what is 1 8/9 divided by 1/3

Answers

the answer to that question is 0.62962962963
(1 8/9) / (1/3)
(17/9) / (1/3)
(17/9) * 3/1
17/3 or 5 2/3 <==

How did you get that answer? Also doesn't 80 tens equal 800

Answers

yes. 80 tens = 80 x 10

80 x 10 = 800

hope this helps

Help me with 234 thousands + 7 ten thousands = need answer ASAP!

Thanks

Answers

It’s basically 243 + 7. Don’t have to pay too much attention to the ‘thousandths’ part yet. So yea, what she/he said. 244 thousandths.

The solution of the addition will be 944000.

What is an expression?

Expression in maths is defined as the collection of numbers variables and functions by using signs like addition, subtraction, multiplication, and division.

Numbers (constants), variables, operations, functions, brackets, punctuation, and grouping can all be represented by mathematical symbols, which can also be used to indicate the logical syntax's order of operations and other features.

Given that 234 thousand + 7 ten thousand. The summation of the numbers will be:-

Add both numbers.

S = 234000 + 710000 .

S = 944000

Therefore, the solution of the addition will be 944000.

To know more about an expression follow

https://brainly.com/question/13776939

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solve;

5(x+1)=6.4−2.7x

3(y−1.5)=9.9–4.2y

0.9y−1.8=0.3(y−4)

Answers


1. Answer x=0.18

2. Answer y = 2

3. Answer y = 1

How far can you get away from your little brother with the squirt gun filled with paint if you can travel 3m/s and you have 15s before he sees you?

Answers

Answer:

45 m

Step-by-step explanation:

We are given that a little brother of your with the squirt gun filled with paint  is far away from you.

We have to find the distance between you and your brother

Speed =3 m/s

Time taken by you =15 s

We know that speed=[tex]\frac{distance}{time}[/tex]

Substitute the value then we get

[tex]3=\frac{distance}{15}[/tex]

Distance =[tex]3\times 15[/tex]

Distance =45 m

Hence, you can travel 45 m then he sees you.

Final answer:

You can get 45 meters away from your little brother with the squirt gun filled with paint.

Explanation:

To determine how far you can get away from your little brother with the squirt gun filled with paint, we need to calculate the distance using the formula: distance = speed x time. Given that your speed is 3 m/s and you have 15 seconds before he sees you, the distance can be calculated as follows:

distance = 3 m/s x 15 s = 45 meters

Therefore, you can get 45 meters away from your little brother with the squirt gun filled with paint.

Learn more about Distance calculation here:

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write an equation and solve

Answers

A good one is. 9+10 = 21
r + (-6) = -10

To solve the equation r + (-6) = -10, since -6 is being added to r, we need to subtract -6 from both sides of the equation.

It's important to understand that minus a negative means the same thing as plus a positive so we're really adding 6.

On the left side of the equation, the -6 and +6 cancel out and we have r. On the right side of the equation, -10 + 6 is -4.

So we have r = -4 which is the solution to our equation.

Mr. Pease, a science teacher, records the air temperature, in degrees Celsius, every two hours. The table below shows part of Mr. Pease's temperature data.

Complete the table using the following information:
Between 10 a.m. and 12 p.m., the temperature increased by the same amount as between 8 a.m. and 10 a.m.
Between 12 p.m. and 2 p.m., the temperature decreased by 5 degrees.

What is 12 pm and 2pm

Answers

12/2=6 the / mean divde

3 erasers cost $4.41
Witch equation will help determine the cost of 4 erasers

Answers

Final answer:

To determine the cost of 4 erasers, set up a proportion using the given information.

Explanation:

To determine the cost of 4 erasers, we can set up a proportion using the given information. We know that 3 erasers cost $4.41, so we can write the equation:

3 erasers / $4.41 = 4 erasers / x

To solve for x, we can cross-multiply:

3 * x = 4 * $4.41

x = (4 * $4.41) / 3

Calculating this, we find that the cost of 4 erasers is $5.88. So, the equation that will help determine the cost of 4 erasers is 3 erasers / $4.41 = 4 erasers / $5.88.

The correct equation that represents this relationship and would help determine the cost of 4 erasers is:[tex]\[ \frac{4}{x} = \frac{3}{4.41} \][/tex]

The correct option is (A).

The image shows multiple choice options for equations that could be used to determine the cost of 4 erasers given that 3 erasers cost $4.41.

To find the cost of 4 erasers, we would want to set up a proportion where the number of erasers is directly proportional to the total cost. Given that 3 erasers cost $4.41, we can write this relationship as:

[tex]\[ \frac{\text{Number of erasers}}{\text{Cost}} = \frac{3}{4.41} \][/tex]

We want to find the cost for 4 erasers, so we can set up an equation with [tex]\( x \)[/tex] representing the unknown cost for 4 erasers:

[tex]\[ \frac{4}{x} = \frac{3}{4.41} \][/tex]

This equation can be solved to find \( x \), the cost for 4 erasers. We can cross multiply to solve for \( x \):

[tex]\[ 3 \times x = 4 \times 4.41 \][/tex]

[tex]\[ x = \frac{4 \times 4.41}{3} \][/tex]

Let's solve for[tex]\( x \)[/tex] to find the cost of 4 erasers.

The cost for 4 erasers, given that 3 erasers cost $4.41, would be $5.88.

The correct equation that represents this relationship and would help determine the cost of 4 erasers is:

[tex]\[ \frac{4}{x} = \frac{3}{4.41} \][/tex].

complete question given below:

This is more of a question about a symbol, rather than a question about a problem.
I keep seeing 7√2 and I'm just wondering if the number outside of the radical is being multiplied by the square root, or if there is a deeper meaning. I can't really explain well, but if the square root of 2 is about 1.41 then would I multiply 1.41 by 7 to get 9.87? Or..?

Answers

you are right, when you see a number like 7√2

 you would multiply 7 by √2

which = 7 x 1.41 = 9.87

Y=-1/2x+2 whats the answer? Plz help me

Answers

Y = -1/2(-5/3) + 2
Y = 5/6 + 2

I think that is how you do it. You should probably check my work and look for other answers to compare mine with before you take my word for it. Hope this helps!

Annie plants 6 rows of small flower bulbs in a garden. She plants 132 bulbs in each row. How many bulbs does Annie plant?

Answers

She plants 792 bulbs 
132 bulbs per row • 6 rows = 792 total bulbs

Find the slope of the line that passes through the points (1,-4) and (4,2)

Question 2 options:

1/2


-2


2


-2/3

Answers

You would do y1-y2/x1-x2. So2--4/4-1

That equals 6/3=1/2 so the slope is 1/2
The slope formula is:

[tex] \frac{y_{2} - x_{1} }{ x_{2} - x_{1} } [/tex]

You would then put in the points.

[tex] \frac{2 - (-4)}{4 - 1} [/tex]

Is equal to

6/3

Or 2.

solve x squared minus 2x minus 15 equals 0 using the zero product property

Answers

x^2 - 2x - 15 = 0

(x - 5)(x + 3) = 0

We have two factors:

(x - 5) and (x + 3)

Set each factor to 0 and solve for x.

Take it ftom here.

Let x be the first factor in an expression in scientific notation. Describe the possible values of x.

Answers

Final answer:

In scientific notation, the coefficient is a number from 1 to 10 multiplied by a power of 10, which represents the number of decimal places moved to convert a number to this format.

Explanation:

The first factor in an expression in scientific notation is the coefficient, which must be a number equal to or greater than 1 and less than 10. The coefficient is then multiplied by a power of 10 to represent the original number accurately.

For example, to write the number 79,345 in scientific notation, one would express it as 7.9345 × 104, because we have moved the decimal place to make 79,345 into 7.9345 while recording that we have moved the decimal place four positions to the right, hence the power of 10 being 4.

What percent of 600 is 12?

Answers

the answer would be 72.
the answer is 12 is 2% of 600 

This is the call plan for Robert's cell phone:

$15 a month plus free texts plus 20 cents per minute for call time. How much is his bill if he talked 30 minutes and had 115 texts?

Question 4 options:

$6.00


$23.00


$27.00


$21.00

Answers

To answer this, first make an equation representing the data: 

15+ 0.20X= Bill

now plug in data you know:

15 + 0.20(30)= bill

and finally solve it: 
Bill= $21.00

$0.20 times 30 minutes = $6.00
So $6.00 plus the $15 charge each month = $21.00

-4(-8x-8) im using the disturbutive property

my answer: 32x--32 is that correct or is it 32x+-32
or is it something else?

Answers

Yes you are right, but just make sure that it's not 32x--32. You can't have two subtraction symbols. Two negatives becomes a positive, so it would be 32x+32
You're almost entirely correct: the correct answer is 32x + 32. The product of two negatives (in this case, -4 and -8) is a positive.

Last month, Jenny's science test score was 65. This month, her science test score is 91.
What percent of last's month's score is this month's score?

A)118%
B)135%
C)140%
D)145%

Answers

The answer is C, 140%.

Hi friends, the answers would most certainly be 140

To the nearest hundredth, what is the distance between point (-6, -1) and point (4, 3)?

Answers

Use the distance formula and simply substitute in the corresponding orders pairs.

Distance = √(x2 - x1)² + (y2 - y1)²

Distance = √(4 - (-6))² + (3 - (-1))²

Distance = √(4 + 6)² + (3 + 1)²

Distance = √(10)² + (4)²

Distance = √100 + 16

Distance = √116

Distance = 10.7703296143

Round to the nearest hundredth!

Distance ≈ 10.77

Answer:

10.77

Step-by-step explanation:

Write two decimals that have a difference of 16.825

Answers

16.826 - 0.001

17.825 - 1.

16.82 + 0.005

Let

x-------> first decimal

y------> second decimal

we know that

[tex]y-x=16.825[/tex]

[tex]y=16.825+x[/tex]

Assume the value of x and find the value of y with the equation

so

For [tex]x=3.875[/tex]

Find the value of y

Substitute the value of x in the equation

[tex]y=16.825+x[/tex]

[tex]y=16.825+3.875[/tex]

[tex]y=20.700[/tex]

therefore

the answer is

The two possible decimals are

[tex]3.875[/tex]

[tex]20.700[/tex]

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