A block of wood has a mass of 120g and a volume of 200cm3. What is the density of the wood?

Please provide an explanation!

Answers

Answer 1
density=mass/volume
given mass=120g and volume=200cm3
density=[tex]\frac{120g}{200cm^3}=\frac{3}{5} \space\ \frac{g}{cm^3}[/tex] or abot 0.6


the density is [tex] 0.6 \space\ \frac{g}{cm^3}[/tex]
Answer 2

Answer: [tex]0.6\ g/cm^3[/tex]

Step-by-step explanation:

We know that the formula to find density is given by :_

[tex]\text{Density}=\dfrac{\text{Mass}}{\text{Volume}}[/tex]

Given : Mass of block of wood = 120 g

Volume = [tex]200\ cm^3[/tex]

Then, the density of wood is given by :_

[tex]\text{Density}=\dfrac{120}{200}=0.6\ g/cm^3[/tex]

Hence, the density of wood = [tex]0.6\ g/cm^3[/tex]


Related Questions

Dave has a 32-ounce energy drink. He drinks 10 ounces. Enter the percentage of ounces Dave had left from his energy drink. Round your answer to the nearest hundredth

Answers

Answer:

Step-by-step explanation:

Dave has a 32-ounce energy drink and he drinks 10 ounces then 68.75% of the energy drink has been left by Dave.

What is Percentage?

percentage, a relative value indicating hundredth parts of any quantity.

Given that Dave has a 32-ounce energy drink.

Dave drinks 10 ounces of energy drink.

We need to find the percentage of ounces Dave had left from his energy drink.

To find this first we have to subtract 10 from 32

32-10 = 22.

Now let us find 22 is what percentage of 32.

x/100 × 32 = 22

0.32x=22

Divide both sides by 0.32

x=22/0.32

x=68.75 %

Hence, 68.75% of the energy drink has been left by Dave.

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Please help!


Prove that opposite sides of a parallelogram are congruent. Be sure to create and name the appropriate geometric figures.

Answers

Draw a parallelogram ABCD.
Use a horizontal segment AB (A at left, B at right).
Then from B draw a segment tilting up to the right.
Call the endpoint C. Then draw a horizontal segment to the left.
Call the endpoint D. Connect D to A. Draw the sides, so that
opposite sides are parallel and ABCD looks like a parallelogram.

Given: Parallelogram ABCD
Prove: Seg AB is congr seg CD; seg AD is congr seg BC

Statements                                      Reasons
1. Parallelogram ABCD                    1. Given
2. Draw diagonal AC                        2. Construction
3. AB || DC                                       3. Def of parallelogram
4. <ACD is congr <CDB                   4. Alt int angles of || lines
5. AD || CB                                       5. Def of parallelogram
6. <DAC is congr <BCA                   6. Alt int angles of || lines
7. Seg AC is congr seg AC              7. Congruence of segs is reflexive
8. Triangle ADC is congr tri. CBA    8. ASA
9. Seg AD congr seg BC                  9. CPCTC
10. Seg. AB congr seg CD              10. CPCTC

on a tour of an old gold mine, you find a gold nugget containing .82 ounces of gold. gold is worth $1566.80 per ounce. how much is your gold worth?

Answers

1 ounce is worth $1566.80

0.82 ounce is worth 0.82 * $1566.80

0.82 * $1566.80 = $1284.78

The value of a gold nugget containing 0.82 ounces of gold at $1566.80 per ounce is $1284.776.

The value of a gold nugget containing 0.82 ounces of gold, given that gold is worth $1566.80 per ounce, can be calculated through a simple multiplication. The value of the gold nugget is found by multiplying the amount of gold in the nugget by the price per ounce of gold.

To calculate:

Multiply the weight of the gold nugget (0.82 ounces) by the value per ounce ($1566.80).0.82 ounces  imes $1566.80/ounce = $1284.776

Therefore, the gold nugget is worth $1284.776.

Mark put his dog on a diet. The dog's total weight change for the first 2 weeks was −3/4 pound. The dog lost the same amount of weight each week. What was the change in the dog's weight after the first week of the diet? Enter your answer in the box.

Answers

The dog lost the same amount each week and in the first two weeks -3/4 lbs so in one week that's -3/4 * 1/2 = -3/8 lbs

Find the difference. 632
-274

Answers

Really? It's quite simple. 632 - 275 = 357. 

~PutarPotato
To find the difference you would, simply, subtract the smaller number from the larger. 
632 - 274 = 358

The difference is 358. 

I hope this helps!

Write each mixed number as a percent 2 1/2

Answers

The answer is:  " 250 % " .
_____________________________________
That would be 259%. Hope I helped!

Show how 10 - 4 helps you solve 30 - 4

Answers

[tex]\boxed{ \ 30 - 4 = \ ? \ }[/tex]

  30 - 4 = ...

 /     \

20 + 10

[tex]\boxed{ \ 10 - 4 = 6 \ }[/tex]

[tex]\boxed{ \ 20 + 6 = 26 \ }[/tex]

[tex]\boxed{ \ \boxed{ 30 - 4 = 26} \ }[/tex]

Further explanation

This material is part of the common core mathematics curriculum.

Show how 10 - 4 helps you solve 30 - 4.

We know 10 - 6 = 4.

Furthermore, we can take out 10 from 30 and subtract 6 from 10.

[tex]\boxed{ \ 10 - 4 = 6 \ }[/tex]

Then we can add what is left, which is 20 to add to 6.

20 + 6 = 26

So, results from 30 - 4 are 26.

Let's review the steps again.

[tex]\boxed{ \ 10 - 4 = 6 \ }[/tex]

[tex]\boxed{ \ 20 + 6 = 26 \ }[/tex]

[tex]\boxed{ \ \boxed{ 30 - 4 = 26} \ }[/tex]

Learn more4 times as much as 3 is ... https://brainly.com/question/5737299 ten thousands divided by ten https://brainly.com/question/545132²/₇m - ¹/₇ = ³/₁₄ solve step by step https://brainly.com/question/4853649

Keywords: show how, 10 - 4, helps you, solve, 30 - 4, subtracts, add, waht is left, the common core mathematics curriculum

With the help of 10 - 4, the solution of 30 - 4 is 26.

Using 30 - 4 to solve 10 - 4

Since the subtracted value from 30 and 10 are the same (4) ;

Therefore,

The sum of the difference between :

(10 and 4) and (30 and 10)

(10 - 4) + (30 - 10)

6 + 20 = 26

Hence, from 10 - 4; 30 - 4 gives 26

Subtracting directly also gives  :

30 - 4 = 6.

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Evaluate c-2 when c =7

Answers

If C = 7, You would do 7-2 = 5

Answer:

The value of given expression c-2 is 5 when c=7.

Step-by-step explanation:

The given expression

[tex]c-2[/tex]

We have to find the value of given expression c-2 when c=7.

Substitute c=7 in the given expression.

[tex]c-2=7-2[/tex]

[tex]c-2=5[/tex]

Therefore the value of given expression c-2 is 5 when c=7.

Which of the following measurements could be the side lengths of a right triangle? A. 66 in, 88 in, 110 in
B. 66 in, 88 in, 132 in
C. 66 in, 99 in, 110 in
D. 55 in, 88 in, 110 in

please dont answer if not 100 % sure.

Answers

So the way to figure out the sides of a right triangle, is basically

A^2 + B^2 = C^2

Letter A is the only one that would work, because the first number squared (times itself), added to the second number squared, would equal the third number squared. This is a basic principle of the pythagorean theorem, which I can explain in more detail if you'd like. :)

Answer:

Step-by-step explanation:

The cable is 50 yards long, viewing post is 40 yard high , how far is the bottom cable from the base of the viewing post

 A hiker is walking down a mountain. She walked​ 5,978 feet in 17 minutes. In that​ time, she descended​ 1,024 feet from the top of the mountain. She then walked​ 3,972 feet in 7 minutes. In that​ time, she descended 500 more feet. Express the average rate of change in altitude of the hiker from her starting point to her ending point as a unit rate.

Answers

first walk=descend of 1024 feet in 17 minutes
second walk=descend of 500 feet in 7 minutes

so in total she descended 1024+500=1524 feet in 7+17=24 minutes
as an average rate this equals 1524/24=63.5 feet/minute descended
or an average rate of -63.5 feet/minute in altitude (note the minus)

The average rate of change in altitude of the hiker from her starting point to her ending point is -63.5 feet per minute.

The following can be deduced based on the information provided in the question:

During the first walk, she descended 1024 feet and during the second walk, she descended 500 feet. Therefore, the total will be:

= 1024 feet + 500 feet = 1524 feet

During the first walk, the time taken was 17 minutes while for the second walk, the time taken was 7 minutes. Therefore, the total time taken will be:

= 17 minutes + 7 minutes

= 24 minutes.

Therefore, the average rate will be:

= 1524 / 24

= 63.5 feet per minute

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Which statements about opposites are true?

Select each correct answer.

A.The product of a number and its opposite is always 1.

B.A number and its opposite are located the same distance from zero on a number line.

C.The opposite of zero is zero.
The opposite of a negative number is always a positive number.
D.

Answers

B is true
D as well

Write a problem involving how much more Than and solve it. Explain how drawing a diagram helped you solve the problem

Answers

A very simple example problem to satisfy the required above is,
"John has 8 apples and 17 oranges. How much more oranges does John has than apple?"

To answer this item, one needs to subtract the number of apples from the number of oranges. This is as shown below,
     D = 17 - 8 = 9

The concept of "how much more than" is linked to finding the difference between the numbers. 

The Ortiz family will travel round-trip from Indianapolis to Denver this summer. The driving distance between the two cities is 1,058 miles. They need to find out about how much the gas will cost round trip. Their car gets about 20 miles per gallon. They usually spend about $2.89 per gallon.

Answers

They will spend $152.881 because when you divide the total amount of miels by the 20 miels you will get 52.9 miels than you are going to multiply the 52.9 miels by the amount of money for one gallon u get $152.881 dollars for 52.9 times you put in gas on the car.

How many times larger is 9 x 10-8 than 3 x 10-12?

Answers

9x10-8 is about 4.5 times larger than 3x10-12

First solve the equations

9*10-8
90-8
(82)

3*10-12
30-12
(18)

Divide 82/18= 4.5

[tex]9\times10^{-8}[/tex] is [tex]3\times10^{4}[/tex] times larger than [tex]3\times10^{-12}[/tex].

The given number is [tex]9\times10^{-8}[/tex] and [tex]3\times10^{-12}[/tex].

We need to find how many times larger is  [tex]9\times10^{-8}[/tex] than [tex]3\times10^{-12}[/tex].

What is scientific notation?

To determine the power or exponent of 10, let us understand how many places we need to move the decimal point after the single-digit number.

If the given number is multiples of 10 then the decimal point has to move to the left, and the power of 10 will be positive.If the given number is smaller than 1, then the decimal point has to move to the right, so the power of 10 will be negative.

Now, [tex]\frac{9\times10^{-8}}{3\times10^{-12}}[/tex]

[tex]=3\times\frac{10^{-8}}{10^{-12}}[/tex]

[tex]=3\times10^{-8+12}[/tex]  (∵[tex]\frac{a^{m}}{a^{n}} =a^{m-n}[/tex])

[tex]=3\times10^{4}[/tex]

Therefore, [tex]9\times10^{-8}[/tex] is [tex]3\times10^{4}[/tex] times larger than [tex]3\times10^{-12}[/tex].

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47% of $118 estimate

Answers

47% of $118 is 55.46

This can be rounded to $55.50.

Hope this helps!

a school has a goal of getting at least 2000 boxtops. they have 872 so far.
they have 8 days left to get it.at least how many do they need to collect each day to meet or exceed their goal.

Answers

they need to collect 141 each  day

You have $ 2 0 $20dollar sign, 20 to spend on taxi fare. The ride costs $ 5 $5dollar sign, 5 plus $ 2 . 5 0 $2.50dollar sign, 2, point, 50 per mile. Let m mm represent the number of miles ridden. Write an inequality to determine how many miles you can ride for $ 2 0 $20dollar sign, 20.

Answers

Answer:

6 x $2.5 = $15

$15 + $5 = $20

12x+28y=84 how do I graph it

Answers

First, you must turn it into slope-intercept form (y=mx+b)
12x+28y=84
-12x -12x
28y=84-12x
÷28 ÷28
y= 2/5x+3

the +3 is your y-intercept (the point which your line touches the y-intercept
then the 2/5x is the slope (slope: rise over run)
so starting from your y intercept go up 2 to the right 5, then if you need to go down from the y-intercept do the opposite (down 2 to the left 5) now just draw the line to connect the points

hope this helps!!

What is the acceleration of a wagon of mass 20 kg if a horizontal force of 64 N is applied to it? (Ignore friction)

Answers

Hello, acceleration is given by F/m (F is force, m is mass).

So 64 N / 20 kg = 3,2 N/kg or m/s²
Final answer:

The acceleration of the wagon is 3.2 m/s².

Explanation:

To find the acceleration of the wagon, we can use Newton's second law of motion, which states that the acceleration of an object is equal to the net force applied to it divided by its mass. In this case, the net force is 64 N (the horizontal force applied) and the mass of the wagon is 20 kg. So the acceleration can be calculated as follows:

A = F/M = 64 N / 20 kg = 3.2 m/s²

Therefore, the acceleration of the wagon is 3.2 m/s².

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I can't figure this out... Can someone please help me?

Answers

[tex]j(x)=- \frac{4}{5}x+7[/tex]

[tex]j(x)=-5[/tex]

[tex]x=15[/tex]

Hope I helped!


What is the fraction of 35%

Answers

Percentage is out of a 100. Therefore, 35/100
Simplify 35/100
Becomes 7/20
Fraction of 35% is 7/20
35% would directly translate to the fraction 35/100.

Now we can simplify here, by dividing both sides by 5, to get 7/20.

So it would be 7/20.

What is the value of the underlined digit 53

Answers

If the 5 is underlined it would be 50. If the two is underlined it's just 2.

Solve for S.

3s + 2 = 12 - 2s

Answers

The answer to your equation is s = 2

3s+2=12-2s

(3s-3s)+2=12(-2s-3s)

2=12-5s

2-12=(12-12)-5s

-10=-5s

-10/-5=-5s/-5

2=s

Check

(3*2)+2=12-(2*20

6+2=12-4

8=8

S=2

PLEASE YOU CAN ANSWER NUMBER 1 OR 2 OR BOTH PLEASE I JUST NEED HELP WITH BOTH AND NO ONE WILL ANSWER MY QUESTIONS!!!!!!!! :(

1.)In two or more complete sentences, explain how to find the time it takes for a rocket following the path, h(x) = -4x 2 + 16x, to hit the ground.

2.)A ball is thrown straight up from the top of a building that is 280ft high with an initial velocity of 48ft/s. The height of the object can be modeled by the equation s(t) = -16t 2 + 48t + 280.
In two or more complete sentences explain how to determine the time(s) the ball is higher than the building in interval notation.

Answers

1.) You plug a number into the variable x. Then you will solve the equation for h(x) to find the time it takes for the rocket to travel the path given.


Answer:

Step-by-step explanation:

Given that a rocket path is given by

[tex]h(x) = -4x^2 + 16x[/tex]

When it hits the ground h(x) =0

Hence we get

[tex]-4x^2 + 16x=0\\x=0, 4[/tex]

i.e. after 4 minutes the rocket hits the ground

2) Given that

[tex]s(t) = -16t^2 + 48t + 280.[/tex]

We have to find time t when height >280

[tex]s(t) = -16t^2 + 48t + 280>280\\\\t=0, 3[/tex]

Between 0 and 3 seconds the object would be above the building.

a table is 6 feet long and 3 feet wide. You extend the table by inserting two identical table leaves. The longest side length of each rectangular leaf is 3 feet. The extended table is rectangular with an area of (18+6x) square feet. a) write an algebraic expression that represents the length of the extended table b) what does your variable represent?

Answers

a. The algebraic expression that represents the length of the extended table is 6 + 2x

b. The variable 'x' represents the length added by inserting each identical table leaf.

How to write an algebraic expression

a) To write an algebraic expression representing the length of the extended table, consider the original length of the table (6 feet) and the length added by inserting two identical table leaves (each with a longest side length of 3 feet).

Let's denote the length added by inserting the table leaves as 'x'.

Since we're inserting two identical leaves, the total length added would be 2x.

The length of the extended table can be expressed as the sum of the original length (6 feet) and the length added by the table leaves (2x):

Length of the extended table = 6 + 2x

b) The variable 'x' represents the length added by inserting each identical table leaf. It quantifies the extra length that extends the original table when the leaves are inserted.

Use a bar model to find the unknown value: 3/6 = ?/7

Answers

This is set up as a proportion, so let’s cross multiply the values. When you do, you should get 21 = 6x. Now, divide each side by 6 to isolate the “x”. 21/6 is 3.5. x = 3.5. The unknown value is 3.5.

Write words to match the expression of 4x(10 -2)

Answers

=32x. This is the write answer

going down the river a boat went 13 km/h. going up the river it only 1 km/h. Find the speed of the boat in still water and the speed of the current.

Answers

This question looks really tricky, but it's actually just describing a system of equations. We have the equation for the speed of the boat with the current and the speed of the boat against the current. Call the boat speed b and the current speed c:
[tex]b+c=13[/tex]
[tex]b-c=1[/tex]

Then
[tex](b+c)+(b-c)=13+1[/tex]
[tex]2b=14[/tex]
[tex]b=7[/tex]

So the boat's speed is 7 km/h. Find the current's speed by plugging the boat speed back into one of the original equations:
[tex]7+c=13[/tex]
[tex]c=6[/tex]

The current's speed is 6 km/h.

The speed of boat is 7 km/h and speed of stream is 6 km/h.

What is speed ?

In unit time the distance covered by any object is called speed.

In mathematical term, Speed is express as S=D/T,

where S=speed, D=distance, T= time .

Let the speed of boat in N, and the speed of current is D,

Given that,

The speed in downward stream of a boat N+D= 13 km/h,    (1)

And the speed in upward stream of a boat N-D= 1 km/h.     (2)

To Find speed of boat in still water, add equation (1) and (2),

2N=14 ⇒ N=7 km/h

To Find speed of current, substract equation (1) and (2),

2D=12 ⇒ D=6 km/h.

The speed of boat is 7 km/h and speed of stream is 6 km/h.

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a football team gains 8 yards in one play, then loses 5 yards in the next.How many yards did the team gain in these two plays

Answers

3 yards 
cause if they move up 8 and take away 5 then they only moved up 3 yards
8-5=3
Gains 8 loses 5 the answer obviously 37 nah jk it's 3

−p(d+z)=−2z+59. solve for z.

Answers

we have

[tex]-p(d+z)=-2z+59[/tex]

Solve for z

[tex]-p(d+z)=-2z+59\\-pd-pz=-2z+59[/tex]

Group terms that contain the variable z, and move the other terms to the opposite side of the equation

[tex]-pz+2z=59+pd\\z(2-p)=59+pd[/tex]

Divide by [tex](2-p)[/tex] both sides

[tex]z=\frac{(59+pd)}{(2-p)}[/tex]

therefore

the answer is

[tex]z=\frac{(59+pd)}{(2-p)}[/tex]

Final answer:

The equation −p(d+z)=−2z+59 was solved for z by distributing the negative sign, combining like terms, and dividing by the coefficient of z, resulting in z = (59 + pd)/(2 - p).

Explanation:

The student asked to solve the equation −p(d+z)=−2z+59 for z. To solve for z, we need to isolate z on one side of the equation, following these steps:

Distribute the negative sign through the parentheses on the left side of the equation: −pd − pz = −2z + 59.

Move the terms containing z to one side of the equation: −pz + 2z = 59 + pd.

Combine like terms by adding pz to both sides: 2z + pz = 59 + pd or z(2 - p) = 59 + pd.

Divide both sides by (2 - p) to solve for z: z = (59 + pd)/(2 - p).

Now, z is isolated and the solution is given in terms of p and d.

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