Mathematics High School

12 is 90% of what number?


with steps

Answers

Answer 1

Answer:

Let's understand the concept:-Here 12 is 90% of a number. So we can say that 90% of That number is 12 .In this way we can get the the number Solution:-

Let,

the number=x

According to the question ,

[tex]{:}\longrightarrow[/tex][tex]\sf 90\% \:of \;x=12 [/tex]

We know 90%=90/100so add it

[tex]{:}\longrightarrow[/tex][tex]\sf {\dfrac {90}{100}}\times x=12 [/tex]

[tex]{:}\longrightarrow[/tex][tex]\sf {\dfrac {90x}{100}}=12 [/tex]

Now use cross multiplication method

[tex]{:}\longrightarrow[/tex][tex]\sf 90x=12\times 100 [/tex]

[tex]{:}\longrightarrow[/tex][tex]\sf 90x=1200 [/tex]

Now interchange sides .

[tex]{:}\longrightarrow[/tex][tex]\sf x={\dfrac {1200}{90}}[/tex]

[tex]{:}\longrightarrow[/tex][tex]\sf x={\dfrac {200}{15}}[/tex]

Answer will come in decimals so we take approximate value.

[tex]{:}\longrightarrow[/tex][tex]\sf x=13.3 [/tex]

[tex]{:}\longrightarrow[/tex][tex]\sf x=approximately \:13[/tex]

[tex]\therefore[/tex]The number is 13.

Related Questions

helpppppppppppppp pleaseeeeeeeeeeeeeeee

Answers

Answer:

Step-by-step explanation:

1. X=11

Answer:

First page

x=11

y=-15

Second page

x=26

x=10

Third page

x=36

x=88

fourth page

x=81

n=36

fifth page

x=10

x=2

Step-by-step explanation:

Hope this helps

can you mark brainliest it would really help me thank you

Can someone help ? -x-3y=-3 and x-6y= -24

Answers

Is this a system of equations? Lmk in the comments

100 x 500 x 250 x 600 x 900 x 10 000 x 0 x 500 x 60 x 70 x 50 x 90 + 1 x 50 =

Answers

Answer:

50

Step-by-step explanation:

find the amount and the compound interest on rupees 10000 for 2 years at 5% per annum compounded annually​

Answers

Answer:

11025

Step-by-step explanation:

100+5÷100=1.05 squared

10000x1.05squared=11025

Answer:

Amount = 11205

CI = 1205

Step-by-step explanation:

[tex]a = p(1 + \frac{r}{n} ) {}^{nt} [/tex]

Here,

p = 10000

r = 5% = 5/100 = 0.05

n = 1

t = 2

[tex]a = 10000(1 + \frac{0.05}{1} ) {}^{1 \times 2} [/tex]

[tex]a = 10000(1.05) {}^{2} [/tex]

[tex]a = 10000(1.1025)[/tex]

[tex]a = 11205[/tex]

C.I = a - p

C.I = 11205 - 10000

C.I = 1205

A contractor hires 4 workers for a construction project. Each worker is paid $12 per hour. The contractor also buys 20 cubic yards of concrete for the project, at a price of $160 per cubic yard. Which equation best describes the contractor’s total cost, C, if the project takes h hours to complete?


C = (4 x 12)h + (20 x 160)


C = 4(12 + 160)h + 20


C = (20 x 160)h + (4 x 12)


C = 12h + (20 x 160)

Answers

Answer:

The answer is C.

Step-by-step explanation:

4 x 12 is how much money per worker per hour. 20 x 160 is how much the cost for the concrete. Adding them gets you the total cost.

Hope this helped!

The equation that can be used to describe the contractor’s total cost, C, if the project takes h hours to complete is C = (4 × 12)h + (20 + 160)

Given:

Number of workers = 4

Earnings of each work = $12

Yards of concrete = 20 cubic yards

Cost per cubic yards = $160

let

C = total cost

h = number of hours needed to complete the project

C = (Number of workers + Earnings of each work)number of hours + (Yards of concrete + Cost per cubic yards)

C = (4 × 12)h + (20 + 160)

Therefore, the equation that can be used to describe the contractor’s total cost, C, if the project takes h hours to complete is C = (4 × 12)h + (20 + 160)

Learn more about equation:

https://brainly.com/question/4563555

Nita processed the odd number 4575 as follows. She found that the result was an odd number.
Which of the following could be the values of x and y she used in the process? (Note: You need not actually calculate for all the options. Think whether x and y should be odd or even numbers .
With explanation pls

Answers

Answer:

c

Step-by-step explanation:

cwvw

Click to add text
Combine Like Terms:
6y + 4z + 9x + 3y

Answers

Answer:

9y + 4z + 9x

Step-by-step explanation:

9y+4z+9x (I’m 99% sure this is right)

I am like a transformation because

Answers

Because what please elaborate

Use the number line to compare the numbers.
Drag and drop the numbers to place them in increasing order.
-1.3
0.4
-1/3
5/9

Answers

Answer:

The numbers in increasing order are:

-1.3, -0.33, 0.4, 0.55

Step-by-step explanation:

We have numbers:

-1.3,0.4,-1/3,5/9

We need to arrange in increasing order.

First convert fractions into decimals.

-1/3 = -0.33

5/9 = 0.55

We have numbers: -1.3, 0.4, -0.33, 0.55

Arranging numbers in increasing order we arrange them form smallest to largest.

The numbers in increasing order are:

-1.3, -0.33, 0.4, 0.55

a bakery can make 8 cheesecakes for every 8 blocks of cream cheese which table represents the relationship between the number of cheesecakes the bakery makes and the number of blocks of cream cheese the bakery uses

Answers

Answer:

d

Step-by-step explanation:

The Suarez family paid $12.75 for 3 movie tickets. How much would they have paid for 12 tickets?

Answers

Answer:

51 dollars

Step-by-step explanation:

4 times 12.75 =51

Answer:

$51

Step-by-step explanation:

Divide 12.75 from 3. It will give you 4.25. That's how much it is for one ticket. Now multiply that by 12. 4.25 x 12 = 51

sami gets £50 for her birthday.She buys a magazine costing £1.95, a bag for £7.50 and a pair of shoes for £24.99.How much does she have left?​

Answers

Answer:

15.56

Step-by-step explanation:

mark brainliest k ty

Step-by-step explanation:

50 - ( 1.95+ 7.50+ 24.99) =

50 - 34.44 = 15.56

I need help please just give me the answer ..

Answers

Answer:

5x+10y+5z

Step-by-step explanation:

please help meeee!!!!

Answers

Answer:

I think it is 7x+5y=40. Tell me if I'm right because don't think I am.

Step-by-step explanation:

PLEASE PLEASE HELP GIVING BRAINALIST AND EXTRA POINTS FOR FIRST PERSON

Answers

Answer:

answers are below

Step-by-step explanation:

1. k = -12

2. x = 14

3. y = -18

4. x = 34/3 or 11.3333333

5. x = -10

6. b = 17

7. x = 1/7

8. y = -2

Hope this heps!! Tell me if you need any explanations :)

Answer:

1. -12

2. 14

3. -18

4. 11 1/3

5. -1 3/5

6. -17

7. 1/7

8. 7 1/3

Step-by-step explanation:

Most of them should be right but sorry if wrong

An apprentice baker made 40 liters of 60% sugar syrup instead of 40 liters of 45% sugar syrup. How much syrup should she drain and replace with distilled water so that the resulting solution is 40 liters of 45% syrup?

Answers

Answer:

10 l

Step-by-step explanation:

40 l of 60% sugar syrup becomes 40 l of 45% sugar syrup if x l is drained and replaced with distilled water. Sugar content is then:

(40 - x)*0.6 = 40*0.4524 - 0.6x = 180.6x = 24 - 180.6x = 6x = 6/0.6x = 10 l

10 liters solution was replaced with distilled water

2/7+x=17/5
please solve this​

Answers

Step-by-step explanation:

x=17/5 - 2/7

LCM is 7*5=35

x= (17*7-2*5)/35=109/35

can anyone answer this?

Answers

Answer:

Triangle A is congruent to triangle G

Triangle D is congruent to triangle C

Answer:

Triangle A is congruent to Triangle G

Triangle D is cingruent to Triangle C

Step-by-step explanation:

13/26 = x/24 solve for x
PLEASE ANSWER

Answers

Answer:

x= 12

Step-by-step explanation:

hope this helps!!

help! i need help on this math

Answers

Answer:

4

10

25

-1

-4

Step-by-step explanation:

Your answers are correct.

The coefficient of -x^2 is -1 since -x^2 is the same as -1x^2.

The coefficient of -4x is -4.

The perimeter of a rectangle in 48 inches. If the length is 3 inches less than twice the width, find the length and width of the rectangle

Answers

Answer:

W = 9

L = 15

Step-by-step explanation:

I don't know how I got the answer, I just grabbed a calculator and started punching in numbers till I got what I was looking for.

What is true of triangle FGH? It is a right triangle. It is an obtuse triangle. It has exactly 2 congruent sides. It has exactly 3 congruent sides.

Answers

Answer:

D

Step-by-step explanation:

I just did it on edginuty

Answer:

D

explanation:

If you do it on ed then you should get the question right. : )

solve -x=9x by graphing

Answers

Answer:

the answer would be 0.

Step-by-step explanation:

the line would go straight down the middle.

Answer:

just plot that on the type of graph you are supposed to be dojng and solve it. I would do it but i dont have graph paper

Step-by-step explanation:

2 in.
3 in.
5 in.
3 in.
2 in.
4 in.
4 in.
Area

Answers

Answer:

2880 in. Squared i think

Step-by-step explanation:

2880 square inches.

A package of 3 pairs of insulated costs ​$15.57. What is the unit price of the pairs of ​?

Answers

Answer:

-3 pairs cost $15.57

15.57 divided by 3

$5.19 per pair unit rate

CAN SOMEONE HELP?

Find the value of x?​

Answers

Answer:

x = 1

Step-by-step explanation:

Δ ABC and Δ DEF are congruent ( SAS postulate )

Thus corresponding sides are congruent that is

BC = EF , substitute values

13x - 12 = 7x - 6 ( subtract 7x from both sides )

6x - 12 = - 6 ( add 12 to both sides )

6x = 6 ( divide both sides by 6 )

x = 1

Find the area of Show your work and use appropriate units.

Answers

Answer:

30.42 in²

Step-by-step explanation:

Refer to attached

Area of the triangle formula:

A = 1/2bh

b is given: AB = 9 in

Line CD is added for h, finding its value:

CD/BC = sin 75°h/7 = 0.9659h = 7*0.966h = 6.76 in

Then finding the area:

A = 1/2*6.76*9 = 30.42 in²

Arrange the decimals from least to greatest. Choose the letter below that shows the order least to greatest.

-4.3 -0.43 -0.043 -0.34 -3.4

-4.3, -3.4, -0.43, -0.34, -0.043

-4.3, -0.43, -0.043, -3.4, -0.34

-0.043, -0.43, -0.34, -3.4, -4.3

Answers

Answer:

-4.3, -3.4, -0.43, -0.34, -0.043

Juliet has 38 candy bars which She splits among 3 of her cousins. How many candy bars does Juliet have left with her

Answers

Answer:

9 remainer 5

Step-by-step explanation:

What is the correct answer for all? ​

Answers

1.) C
2.) C
3.) C
4.) D
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