What is 40% of 30?

A. 2

B. 5

C. 10

D. 12

Answers

Answer 1

Answer:

D. 12

Step-by-step explanation:

if you have a percentage calculator: 40%30 = 12

or..

40/100 = 0.4 x 30 = 12


Related Questions

Calculate: -3+7
a. -10
b. -4
c. 4
d. 10

Answers

Answer:

C

Step-by-step explanation:

-3+7=4

One leg of a right triangle measures 10 inches while the other leg measure square root of 21 inches. What is the length of its hypotenuse?

Answers

Answer:

11 inches

Step-by-step explanation:

hypotenuse² = leg₁² + leg₂²

                     =10² + (√21)²

                    = 100 + 21

                    = 121

Hypotenuse = √ 121 = √11*11 = 11 inches

Answer:

10^2+√21^2= 100+21= 121

square root of 121= 11

Answer is 11 inches

Step-by-step explanation:

suppose you find one-half of a strand of DNA with base pairs in the sequence ATGACTGCCGTA. What would be the sequence of the missing half?​

Answers

Answer:

TACTGACGGCAT

Step-by-step explanation:

that if u don’t need to change T for U like in a RNA. But base pairs are A-T and G-C. So you just need the opposite

What c-value makes the set of ratios equivalent. HELP ASAP

Answers

Answer:

6 ---------> 2x : 48 = 3 : 12

9 --------->   2 : 3 = 6 : x

16 -------->  12 : 15 = x : 20

24 ------->  4 : 7  = x : 42

Step-by-step explanation:

The actual thickness of a machine part is 0.5 cm, and it has to be measured to within a 2% error. What is the largest measurement
that is acceptable?
A)
0.49 cm
B)
0.51 cm
C)
0.52 cm
D
0.53 cm

Answers

im pretty sure its C

5/4= a= 1 a is? Need help

Answers

THE ANSWER IS THAT A= 1.25

Answer:

You just gave the answer...

5/4 = 1a

5/4 = a

Solve for x.
2x + 20 2x - 4
X=
= [?]

Answers

Answer:

No solution

Step-by-step explanation:

2x+20-2x=2x-4-2x

20= -4

answer is No Solution

HELP PLZ !!!! The graph and the table below show the relationship between the number of servings and the amount of protein in two different snacks.
How many servings of wheat crackers have the same number of grams of protein as one serving of mixed nuts?

Answers

Answer:

exactly 1 (I Think)

Step-by-step explanation:

3

Answer:

exactly 1

Step-by-step explanation:

it is

A figure is a rectangle with a triangle on one side.
What method can you use to find the area of the composite figure? Check all that apply.
decompose the figure into one rectangle and one triangle, and add the areas
decompose the figure into two trapezoids, and add the areas
find the area of the larger rectangle, then subtract the area of the square
find the area of the larger rectangle, then subtract the area of the two small triangles
find the area of the larger rectangle

Answers

We can draw a vertical line segment from the smaller section of the rectangle straight down. This would cut the rectangle into 2 smaller rectangles. We can then find the area of each rectangle and add them to find the area of the composite figure.

Answer:

the awncer is abd

Step-by-step explanation:

original: $75 new: $60

Answers

What's the question?

If it's "What's the difference?" or something like that, then the answer is 15. :)

Answer:

Not sure what your question is asking, if you give me more information I can help you.

HELP ME PLEASEEE?!!!

Answers

Answer:

4W + 4 = 6

W = 1/2

Step-by-step explanation:

4W + 4 = 6                  See the comments below.  Subtract 4 from both sides

4W = 6 - 4                   Combine the terms.

4W = 2                        Divide by 4. That tells you how much 1 W weighs  

W = 2/4                       On the right, you get 2/4

W = 1/2                        Each w is 1/2

Explanation

There are 4 red objects. They all weigh the same amount. So that means that you have 4 W on one part of the scale. On the same side (the left side) there are 4 green weights. They all weigh one. 4*1 = 4  So the left side has 4W + 4  The right side his 6 one pound weights. 6 * 1 = 6The equation is 4w + 4 = 6

Can somebody help? make sure it's right..

Answers

Answer:

That is incorrect because ten you are multiplying the two sets then the exponents just add but but when you put the brackets around it then the exponents are being multiplied not added

Step-by-step explanation:

(xy)^3 * (xy)^4

x^3y^3*x^4y^4

x^7y^7

The rest of the explanation is in the picture

pls help asap will give brainliest!!!

Answers

Answer:

step two added the 9 to each side :)

The graph of the portion I'll relationship contains the point with coordinates 3 and 12 what is the constant of proportionality of the relationshipThe graph of the portion I'll relationship contains the point with coordinates 3 and 12 what is the constant of proportionality of the relationship.​

Answers

Answer:

Step-by-step explanation:

I think it’s 8?

The Lee Family buys a new car that has a sales price of 35,000. If the car dealer requires a minimum dowm payment of 15% ,what is the minimum down payment the Lees must pay for their car?

Answers

Answer:

5250 dollars

Step-by-step explanation:

cross multiply

525000=100x

x=5250

2 ¾ + 4 1/16 this one got very hard for me anyone know this?

Answers

Answer:

6 13/16

Step-by-step explanation:

Make it a fraction for it to be easier to solve.

11/4 + 65/16

The LCM is 16

44/16+65/16

109/16

6 13/16

Answer:

109/16

Step-by-step explanation:

change the mixed fractions to proper fractions

11/4 + 65/16

lcm = 16

(4(11) + 65 )/ 16

(44 + 65)/16

109/16

What is the sum of the interior angles of this polygon?

Answers

Answer:

[tex]D.\ 720\ degrees[/tex]

Step-by-step explanation:

[tex]We\ are\ given:\\The\ following\ polygon\ has\ 6\ sides\ and\ is\ a\ hexagon.\\We\ know\ that,\\The\ Interior\ Angle\ Sum\ of\ a\ polygon\ with\ sides\ n\ is\ given\ by\ the\ formula:\\Interior\ Angle\ Sum=180(n-2)\\Here,\\As\ the\ number\ of\ sides\ are\ 6,n=6\\Hence,\\The\ Interior\ Angle\ Sum\ of\ a\ hexagon=180(6-2)=180*4=720[/tex]

Guys please help meeee!

Answers

Step-by-step explanation:

here is the graph step by step to tell you the interval over which f x is increasing

Find the unknown value in the proportion x∕32 = 38∕64.
Question 4 options:

A)

19

B)

38

C)

54

D)

76

Answers

The answer is A. 19 since 32 is half of 64 so half of 38 is 19

Answer:

x=19

Step-by-step explanation:

This can be found in two ways.

Way #1

Since 32 is half of 64, divide 38 in half to get the missing number, or 19.

Way #2

Solve for x.

x/32 = 38/64

(Solve the expression on the right side)

x/32 = 0.59

(Multiply both sides by 32 to isolate the variable.)

x= 18.88 --> 19.

1. sin 71pi
2. cot pi
3. cos 5pi/6
4. tan 135°
5. sin 120degrees
6. tan 180degrees

Answers

What’s the question just kidding

what is 3/8 times 3/8?

Answers

Answer:

6/8 or sum idrk im just looking for points

What is an additive inverse?

Answers

Answer:

In mathematics, the additive inverse of a number a is the number that, when added to a yields zero. Just remember this number is also known as the opposite sign.

Hope this helps :)!!!!!!!!!!!!!!!!!!!!!

Step-by-step explanation:

C.is decrease by 1 foot every 500 miles D. Is decrease by 1 foot every 1000 miles

Answers

Answer:

Option A

Step-by-step explanation:

Slope of a line passing through two points [tex](x_1,y_1)[/tex] and [tex](x_2,y_2)[/tex] is given by,

Slope = [tex]\frac{y_2-y_1}{x_2-x_1}[/tex]

Line shown in the graph is passing through two points (2, 8000) and (4, 7000).

Therefore, slope of the given line = [tex]\frac{8000-7000}{2-4}[/tex]

                                                        = -500 feet per mile

Which means, altitude decreases by 500 ft every mile.

(Negative sign represents the decrease)

Option A is the correct option.

describe how to solve -5x=30​

Answers

Answer:

x = -6

Step-by-step explanation:

30 = -5x

30/-5 = -5x/-5

-6 = x

Divide 30 by -5 to solve for x

Answer:

Divide both sides by -5.

x = 30/-5 = -6

x = -6

Step-by-step explanation:

2. in a class of 50 students, the number of females is 2 more than 5 times the number of males. How many males and females are there in the class?

Answers

Answer:

The number of male students is 8, while the number of female students is 42.

Step-by-step explanation:

To determine the number of male and female students in the class, knowing that in total there are 50 students, and that the number of female students is two more than five times the number of male students, the following equation must be performed:

X + (5X + 2) = 50

6X + 2 = 50

6X = 50 - 2

X = 48/6

X = 8

Thus, the number of male students is 8, while the number of female students is 42.

What is the ratio of the perimeter of
/\BCD to the perimeter of rectangle
ABDE?

Answers

Answer:

In the figure, the ratio of the perimeter of rectangle ABDE to the perimeter of triangle BCD is 1 . The area of polygon ABCDE is 24 square units.

Step-by-step explanation:

This was correct on plato :D

Step-by-step explanation:

have a great day give me a like

the indertoo #24 and #25 Find the cylinder's volume Label answer correctly. 4962.02 3 25 here ce area. Label answer correct​

Answers

1234567891011121314151617181920

1. How many significant figures are in each of these numbers? a) 768 b) 0.000086 c) 8.0 d) 43,000 e) 3.0200x106 f) 7.9800 g) 98.0010 h) 0.0087600 i) 0.00202​

Answers

Answer:

a) There are 3 significant numbers in 768

b) There are 2 significant numbers in 0.000086

c) There are 2 significant numbers in 8.0

d) There are 5 significant numbers in 43,000

e)  There are 11 significant numbers in 3.0200x10^6

f) There are 5 significant numbers in 7.9800

g) There are 6 significant numbers in 98.0010

h) There are 5 significant numbers in 0.0087600

i) There are 3 significant numbers in 0.00202

Step-by-step explanation:

How many significant figures are in each of these numbers?

a) 768

There is no decimal so, all digits are significant numbers.

There are 3 significant numbers in 768

b) 0.000086

There is decimal point in this number. Zero's on leading (right) side of the number are not considered significant. Only non-zero values are considered significant.

So,  There are 2 significant numbers in 0.000086

c) 8.0

There is decimal point in this number. Digits on left side and right side of the decimal are considered significant

So,  There are 2 significant numbers in 8.0

d) 43,000

There is no decimal so, all digits are significant numbers.

There are 5 significant numbers in 43,000

e) 3.0200x10^6

It can be written as: 3.0200000000

There is decimal point in this number. Digits on left side and right side of the decimal are considered significant

So,  There are 11 significant numbers in 3.0200x10^6

f) 7.9800

There is decimal point in this number. Digits on left side and right side of the decimal are considered significant

So,  There are 5 significant numbers in 7.9800

g) 98.0010

There is decimal point in this number. Digits on left side and right side of the decimal are considered significant

So, There are 6 significant numbers in 98.0010

h) 0.0087600

There is decimal point in this number. Zero's on leading (right) side of the number are not considered significant. Only non-zero values are considered significant.

So, There are 5 significant numbers in 0.0087600

i) 0.00202​

There is decimal point in this number. Zero's on leading (right) side of the number are not considered significant. Only non-zero values are considered significant.

So, There are 3 significant numbers in 0.00202

The picture frame has a perimeter of 100 inches. The width is 22 inches. Calculate the missing length. Use that answer to find the area of the picture frame.

Length of frame?

Area of frame?

Answers

Answer:

39 inches.

858 inches²

Step-by-step explanation:

Length:- (if length = x)

2 ( 11 + x ) = 100

22 + 2x = 100

2x = 100 - 22

2x = 78

x = 78 ÷ 2

x = 39 inches

Area:-

Area = l × b

= 39 × 22

= 858 inches²

Write the number 21, 473, 862, 095 in word form.

Twenty one trillion, four hundred seventy-three billion, eight hundred sixty-two million, ninety-five thousand.

Two hundred fourteen million, seven hundred thirty-eight thousand, two hundred ninety-five.

Twenty-one billion, four hundred seventy-three million, eight hundred sixty-two thousand, ninety-five.

Twenty one million, four hundred seventy-three thousand, eight hundred sixty-two, ninety-five

Answers

Answer:

C. twenty one billion, four hundred seventy three million, eight hundred sixty two thousand, and ninety five

Step-by-step explanation:

please mark brainliest, give a thanks, and rate a five stars if this helped! feel free to ask anymore questions if you need any more help! thanks!

(lol optional): add my sc: tealyn337

The word form of the number 21,473,862,095 is Twenty-one billion, four hundred and seventy-three million, eight hundred and sixty-two thousand, ninety-five.

Hence, the 3rd option is the correct choice.

How are numbers written in word form?

Numbers are taken in blocks of three from the rightward direction, where the third digit is the hundreds digit, the second digit is the tens digit, and the first digit is the units digit.

The blocks from the rightward direction are units block, thousands block, millions block, billions block, trillions block, and so on.

Then these words are written are from the leftward direction.

How to solve the question?

In the question, we are asked to write the number 21,473,862,095 in word form.

We take blocks of three from the right side:-

The first block is 095. This is the unit block.

The word form of this block is: "ninety-five".

The second block is 862. This is the thousands block.

The word form of this block is: "eight hundred and sixty-two thousand".

The third block is 473. This is the millions block.

The word form of this block is: "four hundred and seventy-three million".

The fourth block is 21. This is the billions block.

The word form of this block is: "twenty-one billion".

Now, on combining all, the final word form is:

Twenty-one billion, four hundred and seventy-three million, eight hundred and sixty-two thousand, ninety-five.

Hence, the 3rd option is the correct choice.

Learn more about word forms at

https://brainly.com/question/542383

#SPJ2

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