A piece of iron has a volume of 15cm^3 and a mass 27g.calculate the density of iron in kg/m^3​

Answers

Answer 1

Answer:

density = mass/volume  or mass = density * volume, so 7.86 * 15 = 117.9 grams

Step-by-step explanation:


Related Questions

What is the value of the expression below? (9.5 minus 3 times 1 and one-half) divided by 0.5

Answers

Answer: 0.5

9.5−3×

​2

​1×2+1

​​ ÷0.5

9.5−3×

​2

​2+1

​​ ÷0.5

9.5−3×

​2

​3

​​ ÷0.5

9.5−3×

​2

​3

​​ ×

​0.5

​1

​​

9.5−

​2×0.5

​3×3×1

​​

9.5−

​2×0.5

​9×1

​​

9.5−

​2×0.5

​9

​​

9.5−

​1

​9

​​

9.5 - 9

0.5

​​

Answer:

19.5

Step-by-step explanation:

9.5 minus 3 is 6.5

6.5 times 1.5 is 9.75

9.75 divided by .5 is 19.5

Welcome!!

Sales tax in a certain community is 5%. If the sales tax on a new car was $1400, what was the selling price of the car?

Answers

Answer:

28000

Step-by-step explanation:

Answer:

1400 is 5 percent. So 28000 is the price of the car

Step-by-step explanation:

5 percent times 20 is 100 percent

Find the​ t-value such that the area left of the​ t-value is 0.01 with 8 degrees of freedom.
A. 2.896
B. -4.501
C. 2.998
D. -2.896

Answers

Answer:a is the answer

a vendor has 130,240and 150 oranges to put into bags so that each bag has the same number and there are no oranges left over.what is the largest number of oranges can the vendor put into each dag?​

Answers

is this multiple choice?

Two friends pooled the tickets they won from playing video games to get a prize that requires 450 tickets. If the first friend won 140 more tickets than the second friend, how many tickets did each friend win?
First friend: 2nd friend:

Answers

Answer:

310

Step-by-step explanation:

410-140=310

Answer:310

450-140=310

49,52,52,52,55,55,74,67 find Q3

Answers

Answer:

Answer:

Quartile Statistics

First Quartile Q1 = 52

Second Quartile Q2 = 53.5

Third Quartile Q3 = 61

Interquartile Range IQR = 9

Median = Q2 x˜ = 53.5

Minimum Min = 49

Maximum Max = 74

Range R = 25

Step-by-step explanation:

please help i don’t know

Answers

I’ll help what’s wrong

If the diameter of the circle is 24 cm, find its area correct to one decimal place.

A= ______ cm2

Answers

Answer:

A=pi times radius squared

24/2= 12 is the radius (since it's half of diameter)

A=pi times 12 squared

12 squared is 12 times 12 which is 144

A=pi times 144

A=452.389342

Rounded to 452.4

please help ive asked multiple times and still no help:( please help me if u can and PLEASE don’t put a silly answer, i really need the help

Answers

Answer:

m<9 = -3

Step-by-step explanation:

serenity wants to bake cookies each batch of cookies tajes 2 and 1/4 cuos flour if she wants to bake 5 batches of cookies hiw many cups of flour will she need

Answers

Answer:

11 1/4 or 45/5

Step-by-step explanation:

just multiply 5 * 2 1/4

And thats ur answer

Determine the point that is 3/4 the distance from the endpoint (−6,−16)(−6,−16) of the segment with endpoints (34,2)(34,2) and (−6,−16)(−6,−16).

what, pls explain cus there is other questions similar to this​

Answers

Answer:

The location of the point that is 3/4 the distance from [tex]A(x,y)[/tex] is [tex]C(x,y) = (24, -2.5)[/tex].

Step-by-step explanation:

Let [tex]A(x,y) = (-6,-16)[/tex] and [tex]B(x,y) = (34,2)[/tex] the endpoints of the segment, we can determine the location of the point that is 3/4 the distance from [tex]A(x,y)[/tex] by the following vector equation:

[tex]C(x,y) = A(x,y) + \frac{3}{4}\cdot (B(x,y)-A(x,y))[/tex] (1)

If we know that [tex]A(x,y) = (-6,-16)[/tex] and [tex]B(x,y) = (34,2)[/tex], the location of [tex]C(x,y)[/tex] is:

[tex]C(x,y) = (-6,-16)+\frac{3}{4}\cdot [(34,2)-(-6,-16)][/tex]

[tex]C(x,y) = (-6,-16)+\frac{3}{4}\cdot (40,18)[/tex]

[tex]C(x,y) = (24, -2.5)[/tex]

The location of the point that is 3/4 the distance from [tex]A(x,y)[/tex] is [tex]C(x,y) = (24, -2.5)[/tex].

❶ Find the values of x, y and z in each of the case given below ⟼
━━━━━━━━━━━━━━━━━
❷ Prove that –
If Cos∅ + Sin∅ √2Cos∅, Show that Cos∅ - Sin∅ = √2 Sin∅
━━━━━━━━━━━━━━━━━
– Kindly Don't Spamm⚠️
– No Copied answers⚠️
– Answer with full solution please
━━━━━━━━━━━━━━━━━
Note (For 1st Question) :

• Figure is provided in the Attachment[tex].[/tex]​

Answers

Answer:

1)

y = 45° (converse of alternate interior angle theorem)

z = 45° (alternate interior angle theorem)

k = 135° (exterior angle theorem)

2)

Cos θ + Sin θ = √2 Cos θ

(Cos θ + Sin θ)² = (√2 Cos θ)²

(Exponential property of equality)

Cos² θ + Sin² θ + 2 (Cos θ • Sin θ) = (√2 Cos θ)²

(Distributive property)

1 + 2(Cos θ • Sin θ) = (√2 Cos θ)²

(Definition of the pythagorean identity).

This identity is true because, if a² + b² = c². The triangle must be a right triangle, and a right triangle always has a 90° angle tangent to the triangle, and the tangent of 90° is 1, cos applied to the adjacent over hypotenuse, and sin applies to the opposite over hypotenuse, so this identity must work).

1 + 2(Cos θ • Sin θ) = 2 Cos² θ

(definition of an exponent)

1 + 2(Cos θ • Sin θ) – 1 = 2 Cos² θ – 1

(subtraction property of equality)

2(Cos θ • Sin θ) = 2 Cos² θ – 1

2(Sin θ • Cos θ) = 2 Cos² θ – 1

(Associative property of multiplication ; the input for both functions are θ so this rule works, this is an exception)

Sin (2x) = 2 Cos² θ – 1

(double angled identity of 2 sine and cos)

Graphing Ratios Which line includes the ratios in the table? Reading a Graph All the ratios lie on line 4 .

Answers

Answer:

the answer is b

Step-by-step explanation:

literally it just said b i thought it was a number currently crying

Answer:

Yes it's b

edge

Step-by-step explanation:

help???
Anyone???
Thank you
need it in 3 minn

Answers

Answer:

Multiply 45 by 1.15 then multiply the answer by 36/100. Hopefully this helps you solve later problems yourself

Step-by-step explanation:

Answer: he spent 18.63

Step-by-step explanation:

3 1/2 ÷ 5 =? ( please explain step by step I'm slow :< )

Answers

First you convert the mixed number into an improper fraction. Then, you have to multiply the fractions, which will get you your answer.

3 1/2 ÷5
7/2 ÷1/5
7/10

Translate this sentence into an equation.
The sum of 24 and Vanessa's height is 44.
Use the variable v to represent Vanessa's height.

Answers

Answer:

24+v=44

Step-by-step explanation:

How much is 13 part of 6,918?

Answers

The answer should be 0.19%

Fill in the blank with the correct response. Twenty-five percent of 34 is .

Answers

Answer:

8.5

Step-by-step explanation:

0.25×34= 8.5 hope this helps

Answer:

the answer is 8.5

Step-by-step explanation:


Truetone Music company sold 192,000 alternative music downloads. This represents 64% of their total sales. How
many total downloads did Truetone selt?

Answers

Answer:

The total downloads is 300000

Step-by-step explanation:

Given

Represent the total downloads with D.

[tex]\% = 64\%[/tex]

[tex]Sales = 192000[/tex]

Required

Determine the value of D

We understand that 64% of D = sales.

In other words;

[tex]64\% * D = 192000.[/tex]

Convert % to decimal

[tex]0.64 * D = 192000.[/tex]

Make D the subject

[tex]D = 192000/0.64[/tex]

[tex]D = 300000[/tex]

Hence, the total downloads is 300000


Does anyone know the answer please help

Answers

Answer:

It's a) y = 1/3x

Step-by-step explanation:

If you plug in the y and x into the problem, for example, 27y

27 = 1/3 times 9

if you multiply 9 and 1/3, you get 27

so it's a)

:)

A middle school took all of its 6th grade students on a field trip to see a ballet at a theater that has 2900 seats. The students filled 986 of the seats in the theater. What percentage of the seats in the theater were filled by the 6th graders on the trip?

Answers

Answer:

34%

Step-by-step explanation:

To find what percent a part is of the whole, divide the part by the whole and multiply by 100%.

[tex] \dfrac{986}{2900} \times 100\% = 0.34 \times 100\% = 34\% [/tex]

Answer:

34%

Step-by-step explanation:

986/2900  x 100 = 34%

A) 9x^2-1
B)9x2-6x+1
C)3x^2-1
D) 3x-1

Answers

Answer:

b

Step-by-step explanation:

HELp ASAP!!!! Natalie works in a toy shop and earns $43 per day. She earns an extra $3 for each toy she sells. If Natalie wants to earn at least $70 per day, which inequality shows the minimum number of toys, n, that she should sell? (5 points)

a
43 + 3n ≥ 70, so n ≥ 9

b
43 + 3n ≤ 70, so n ≤ 9

c
43 + 3n ≥ 70, so n ≥ 24

d
43 + 3n ≤ 70, so n ≤ 24

Answers

the answer is letter A !

find the slope of the line that contains the points (-6, 4) and (2, -8)

Answers

Answer:

slope = - [tex]\frac{3}{2}[/tex]

Step-by-step explanation:

Calculate the slope m using the slope formula

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

with (x₁, y₁ ) = (- 6,  4) and (x₂, y₂ ) = (2, - 8)

m = [tex]\frac{-8-4}{2+6}[/tex] = [tex]\frac{-12}{8}[/tex] = - [tex]\frac{3}{2}[/tex]

?
What is the area of triangle ABC if a = 12, b = 17, and C =
100°?
17.71 square units
102 square units
100.45 square units
200.9 square units

Answers

Answer:

C) Area of Triangle is 102 Square Units

Answer: 100.45

Step-by-step explanation: plato or edmentum users i just got it correct

Set X = {x|x is a whole number less than or equal to 10} and set Y = {/15, 10, 15, 20}
a. What is X Y ?
b. What is X UY ?
A
a.
X Y = {0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 15, 20}
b. XUY = {5, 10}
B. a X Y = {5, 10, 15, 20}
b. XUY= 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 15, 20}
C. a. X Y = {5, 10}
b. XUY = {0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 15, 20}
OD. a X Y = {0,1,2,3,4,5,6, 7, 8, 9, 10, 15. 20}
b. X Y = {5,10,15, 20}

Answers

Answer:

C

Step-by-step explanation:

The first part requires the intersection of the two sets, which means only the elements that can be found in both sets.

While the second part requires all the elements in both the sets.

4. Find the number of proper subsets of a set
(a) containing 6 elements
(b) whose cardinal number is 4

Answers

Answer:

Sorry i cant help

Step-by-step explanation:

What is the slope of the graph of f(x) = 12x - 19?

Answers

Answer:m=12

Step-by-step explanation:

The equation is written in slope intercept form which is y=mx+b

Where m= slope and b=constant number so the above equation y=12x-9

M=12 slope of the equation

Answer:

1. The slope is 12

2. (6 - 2)/(12+4)= 4/16= 1/4

y - 2 = 1/4(x + 4)

y - 2 = 1/4x + 1

y = 1/4x + 3

Above Is Step-By-Step

Sorry for the other answer i missunderstood a first

One cold night the temperature was 0 degrees at 8 p.m. The temperature dropped at a constant rate from 8 p.m. to midnight. At midnight the temperature was −16.8 degrees. What was the temperature at 9 p.m.? Enter your answer in the box. degrees


PLZ HELP!!!! 50 POINTS !!!!

Answers

Answer:

Step-by-step explanation:

the rate is -4.2, so after an hour the temperature would be -4.2 degrees

The day before, 25 customers at a bank called to make a deposit, and 100 customers did not call. What percentage of the customers at this bank called to make a deposit?

Answers

Answer:

75 or 85

Step-by-step explanation:

Hope this helps ;)

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