Find the value of each expression mentally.



1. (0.23) ⋅ 100

Answers

Answer 1
23 because you are just moving the decimal place over two

Related Questions

1. Thad bought 8 notebooks that cost $3.79 each. If he gave the cashier a $50 bill, how much change did he get back from the purchase?
2.Lucy purchases a car for $16,314.40. If she makes a payment each month for the next 40 months, how much will she pay each month. (enter your answer as $dollars.cents)

Answers

Answer:

Step-by-step explanation:

1. Cost of each notebook = 3.79

Cost of 8 notebooks = 3.79 x 8 = 30.32

Amount gave to cashier = 50

Change = 50 - 30.32 = 19.68

407.86
Og. Cost - $16,314.40
Months - 40
I divided $16,314.40 by 40 and got $407.86

Lucy will pay $407.86 dollars each month for 40 months.

PLEASE HELP:
What is the measure of the angle that is complementary to
a) 18° _______
a) 25° _________
a) 82° _________
a) 75° _________
Thank you so so much!!! :D

Answers

Answer:

a) 72

b) 65

c) 8

d) 15

Step-by-step explanation:

Answer:

72

65

8

15

Step-by-step explanation:

subtract 90 from each angle to get the answers

The height of a building is proportional to the number of floors. The figure shows the height of a building with floors. Complete parts a and b. a. Write the ratio of height of the building to the number of floors.​ Then, find the unit​ rate, and explain what it means in this situation. Fill in the correct answers to complete the sentences. The ratio of height of the building to the number of floors is . The unit rate is . This means that each floor of the building is ft high.

Answers

Answer:

1:13

1 floor per 13 feet.

It means how many floors are to be allocated in a certain area of space.

Step-by-step explanation:

Answer:


Meaning: Each floor of the buiding has a height of 15 feet.
Step-by-step explanation:
The missing figure is attached.
By definition, the ratios are used to compare two or more things or quantities.
In this case you must write the ratio of height of the building to the number of floors it has.
You can observe in the figure that the building has a height of 135 feet, and, since it has 9 floors, you can write the following ratio:

Therefore, dividing the numerator by the denominator, you get that the unit rate is:

This means that each floor of the buiding has a height of 15 feet

I know it's wrong

please help this is due today!!! i dont really understand that much either!! sorry there is sooo many!!

Answers

Answer:

96.25

Step-by-step explanation:

Take this with a grain if salt but I calculated 80÷725 and it was 96.26

42 students were surveyed on their favorite subject. Out of those 42, 23% of them chose math. If there are 580 students in the whole school, about how many students in the whole school like math? Please leave an explanation as to how you got the answer.

Answers

Answer:

About 133 students consider math as their favorite.

Step-by-step explanation:

You take the 23% and multiply it by the total number of kids which is 580, this gives you the equation 0.23×580 which gives you 133.4.

Answer:

133

Step-by-step explanation:

divide 23 by 100 to get 0.23

then:

0.23 x 580 (no of students in whole school)=133.4

round to nearest whole number as we are working with people to get:

around 133 students in the whole school like math

hope that helped :)

i need help with this question attached

Answers

the answer is 13. You can use pythagorean theorem (a^2+b^2=c^2) and replace a and c with the information given. You then solve for b.
I think the answer is 13 I’m not very sure.

PLEASE HELP ME WITH THIS BRO I SWEAR ILL GIVE BRAINLIEST AND GIVE THE GREATEST COMMENT DUDE PLIS, LOOK ILL EVEN PUT 40 POINTS DUDE I RLLY NEED HELP
'

Logan measured a line to be 7.4 inches long. If the actual length of the line is 7.7 inches, then what was the percent error of the measurement, to the nearest tenth of a percent?

Answers

Step-by-step explanation:

Error = 7.7-7.4=0.3

% error= 0.3/7.7×100 % error= 3.89%

= 3.9% to the nearest tenth

Helppppppppppppppppppppppppppp me plz

Answers

Answer:

14,   15/4x + 3/2

15,   -2x + 14

Step-by-step explanation:

3/4x+3x+2-1/2=

=15/4x+3/2

6x+30-8x-16=

=6x-8x+30-16=

= - 2x+14

The Answer is 2x + 14

pls help on this



88,164 ÷ 24= ? (give steps on this one for me pls)



2 1/3 - 4/5= _______




0.75 x 0.2 = ______



2.48 ÷ 4

Ms. Lori had 3 pizzas at her party. At the end of the evening there was 5/8 of each pizza left. What fraction of pizza was left in total?

pls help you will get brainliest, 5 stars, friend request, and 2 thanks from me <3

Answers

Answer:

88,164 / 24 = 3673.5   It's kinda hard to explain division, just divide by larger numbers than 24, but are also multiples of it, like 24,000 or 72,000 to make it easier and faster.

2 1/3 - 4/5 = 23/15 = 1 8/15

0.75 * 0.2 =  0.15

2.48 / 4 = 0.62

Ms. Lori had 15/8 or 1 7/8 pizza left

A triangle has a base of 3 and 2/5 inches and an area of 5 and 1/10 square inches. Find the height of the triangle

Answers

Answer:

3.33 is the height of the triangle

What is the volume of the prism

Answers

Answer: it may be 85 but i didnt get anything else

Answer:

270 in^3

Step-by-step explanation:

What is the total surface area of this square pyramid?

A square pyramid. The square base has side lengths of 9 millimeters. The triangular sides have a height of 12 millimeters.

_____________ mm2
189
216
297
378

Answers

Answer: The correct answer is 297 (C)

Step-by-step explanation: I got it correct!!. Hope this helps :)

The area of a 2D form is the amount of space within its perimeter. The total surface area of the square base pyramid is 297mm².

What is an area?

The area of a 2D form is the amount of space within its perimeter. It is measured in square units such as cm2, m2, and so on. To find the area of a square formula or another quadrilateral, multiply its length by its width.

The total surface area of the square pyramid is the sum of the area of the triangles and the area of the base. Therefore, the total surface area is equal to,

Total surface area = Area of square base + 4(Area of a triangular face)

                               = (9mm)² + 4(0.5×9×12)mm²

                               = 81mm² + 216mm²

                               = 297mm²

Hence, the total surface area of the square base pyramid is 297mm².

Learn more about the Area:

https://brainly.com/question/1631786

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Graph the relation. Is the relation a function? Why or why not?
{(-1, 1), (-2, 1), (-2, 2), (0, 2)}


A. No; a domain value has two range values.


B. Yes; there is only one range value for each domain value.


C. Yes; there is only one domain value for each range value.

Answers

A because there is two numbers of -2
A , because you can’t have two of the same domains, but you can have two of the same ranges

the vertices of △ABC are ​A(-5,4),B(-2,4),and C(-4,2). If ABC is reflected across the​ y-axis to produce the image △ABC​, find the coordinates of the vertex C


the coordinates of C are...

Answers

Answer:

(4, 2)

Step-by-step explanation:

Because ABC is reflected across the y-axis, this means that the y coordinate will remain the same, and the x coordinate is the negative of its original (because it is being flipped)

If the vertices of △ABC are ​A(-5,4),B(-2,4),and C(-4,2). If ABC is reflected across the​ y-axis to produce the image △ABC​, then coordinates of the vertex C is (4,2)

What is coordinate system?

a coordinate system is a system that uses one or more numbers, or coordinates, to uniquely determine the position of the points or other.

Given that,

Vertices of △ABC are ​A(-5,4),B(-2,4),and C(-4,2).

If ABC is reflected across the​ y-axis to produce the image △ABC.

We need to find the image of △ABC.

We need to find coordinates of vertex C.

As ABC is reflected across the y-axis, this means that the y coordinate will remain the same,

As the triangle is flipped the sign of x coordinate is the negative of its original.

Hence (4,2) is the coordinates of the vertex C.

To learn more on Coordinate system click:

https://brainly.com/question/4726772

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Mason use ⅙ of a gram of honey to make 3/10 of a pan of pudding. How many grams of honey are needed to make a full pan of pudding?

Answers

Answer:

I was going to give the answer but i keep getting it wrong, I am so sorry for wasting your time. IK i shouldn't be answering if I dont have the answer but i need the points. I feel terrible about this.

Step-by-step explanation:

thi one is also ez for you

Answers

Answer:

2 and 1/3

Step-by-step explanation:

6/3 is 2, one left over is 1/3

so 2 and 1/3

The answer is:  2 1/3.

I need help please and thank you ;[

Answers

Answer:

12 + 12x

Step-by-step explanation:

Given

3(4 + 4x) ← multiply each term in the parenthesis by 3

= 12 + 12x

The answer is 12+12x


You divide the 3 with both 4’s

3x4=12
3x4x= 12x

Help

A) 9
B)4
C)9.5
D)8

Answers

Answer:

its 8

Step-by-step explanation:

Answer:

D. 8

good luck, hope this helps :)

Jackson and Julie are babysitters.

The equation shows Jackson's hourly rate, and the table shows Julie's hourly rate.

Jackson's Babysitting Rate: y = 25x

Given this data,enter the difference (in dollars) between Jackson and Julie’s hourly rate?

Answers

Answer:

the difference is 70 I believe

Step-by-step explanation:

The length of a rectangle is 3 1/6 cm longer than the width. The perimeter of the rectangle is 15 1/3 cm. What are the width and length of this rectangle?
PLS HELP ASAP!!!!!!!!!!!!!!!!!

Answers

Answer:

12 1/6

Step-by-step explanation:

A scale drawing of a city plaza in which 1 inch (in.) = 1.5 feet (ft.) is shown below.

To the nearest whole number, what is the area of the actual plaza?

81 square feet
81 square inches
182 square feet
182 square inches


Answers

Answer:

182 square feet

Step-by-step explanation:

pls help it is due today

Answers

30

Step-by-step explanation:

For each flower there are 6 petals, so you multiple 5 by 6 to get the total amount of petals for 5 flowers

Answer:

30 pedals

Step-by-step explanation:

Using the chart, we can find a pattern, flowers * 6 = pedals.

So, 5 * 6 = 30 pedals.

please help me on the bottom question

Answers

Answer:

z=485

Step-by-step explanation:

You want to have just z on one side, so you would add 321 to both sides. Then you have your answer, so:

z=164+321

Simplify:

z=485

add 321 to both sides= 485

need this right now plz help me

Answers

Answer:

Step-by-step explanation:

13.75+(-11.25)=13.75-11.25

13-11=2

0.75-0.25=.50

2.50

Answer:

2.50

Step-by-step explanation:

What is the average percent of time a student spend sleeping and doing homework?
NEED HELP ASAP PLEASE!

Answers

No answer for you........

...........

Answer:

41%

Step-by-step explanation:

All of those percentages need to add up to 100

8 + 8 + 13 + 13 + 25 + 33 = 100

Ok...so now that we made sure they all add up to 100, all you need to do is combine the percentage of students sleeping and doing Homework, to get the full percentage for both.

Homework = 8%

Sleeping = 33%

8 + 33 = 41

So the percent of time a student spends and doing homework is 41%.

Hope this helped!

Have a supercalifragilisticexpialidocious day!

If I say giving brainliest!!! Y’all will come so fast. Help me please for

Answers

Answer: I think the answer is c but im not sure

Step-by-step explanation:

Q1} What is the greatest common factor of 24 and 40? A. 2 B. 6 C. 8 D. 24

Q2} Which list shows all the factors of 48?

A. 1, 2, 4, 6, 8, 12, 24, 48

B. 1, 2, 3, 4, 6, 8, 9, 12, 16, 24, 48

C. 1, 2, 3, 4, 6, 8, 12, 16, 24, 48

D. 1, 2, 3, 4, 6, 8, 9, 12, 16, 24, 48

Q3} What is the greatest common factor of 60, 84 and 72?

A. 4

B. 12

C. 24

D. 84


Q4} Which list shows all the factors of 36?

A. 1, 2, 3, 4, 6, 12, 18, 36

B. 1, 2, 3, 4, 6, 9, 12, 18, 36

C. 1, 2, 3, 4, 5, 9, 12, 18, 36

D. 36, 72, 108, 144, 180

Q5} Which list shows all the factors of 54?

A. 1, 2, 3, 6, 9, 12, 18, 27, 54

B. 1, 2, 3, 6, 9, 18, 27, 54

C. 1, 2, 3, 6, 9, 18, 54

D. 1, 2, 3, 4, 6, 9, 12, 18, 27, 54

plz hury i am on a test 100 points and Brainlyeist

Answers

Q1) C. 8

Q2) C

Q3) B. 12 (search GCF finder and thats answer)

Q4) B

Q5) B

Answer:8

Step-by-step explanation:

The prime factors of 24 are 2*2*2*3

The prime factors of 40 are 2*2*2*5

They both share 2*2*2

2*2*2=8

the factors of 48 are 1,2,6,8,12,24,48

the greatest common factor of 60, 84 and 72 is 12

solution

12 times 4 equals 84; 12 times 5 equals 60

the factors of 36 are : 1,2,3,4,6,9,12,18,36

factors of 54 are : 1,2,3,6,9,18,27 and 54

hope this helps :)

Please see image below

Answers

Answer:

its A

Step-by-step explanation:

A, 9/5 because 11-2=9/6-1=5

answer quick or noob!

Answers

Answer:

1. Alex is correct 2. Arianna is correct c:< 3. Ignacio is correct

Step-by-step explanation:

1. 14x = 100

2. 12 * x = 625

3. 217x - 975

uwu hope this helped and tell me if this is wrong

Answer:

i geuss im a noob

Step-by-step explanation:

can someone just help me

Answers

Answer: 4. 3 1/2x2 1/3= 20/9or 2 2/9
3 1/2= 7/2 2 1/3=7/3
5. 2 1/8x 4 3/5= 51/10 or 5 1/10
2 1/8= 17/8 4 3/5= 23/5
6. 1 4/6 x 4 1/3= 20/9 or 2 2/9
1 4/6= 5/3 4 1/3= 13/3
Hope it helps
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