Mathematics High School

2/9 ​ of the students in a school are in sixth grade. How many students are in the school if 54 of them are sixth graders?

Answers

Answer 1

Answer:

243

Step-by-step explanation:

Let s be the number of students in the school

2/9 of the students are in 6th grade

2/9 *s = 54

Multiply each side by 9/2

9/2 * 2/9 * s= 54 * 9/2

s =243

Related Questions

Is Y=5 and Y=-1 consider parallel perpendicular or neither show your work

Answers

Answer:

They are parallel.

hope i helped! (put graph down below)

Step-by-step explanation:

A movie begins at 4:30pm and it is 1 hour 50 minutes. What time does it end?

Answers

Answer:

The movie ends at 6:20.

Step-by-step explanation:

4:30

+30

=5:00

+20

=5:20

+1:00

=6:20

3) In September the ratio of the number of kids playing sports to those not playing sports after
school was 3:6. In April the ratio was 5 kids playing sports to 4 kids not playing sports. If there
are 36 kids playing sports in September, how many kids are not playing sports in April?

Answers

Answer:

Step-by-step explanation:

My guess is that 10/36 students weren't playing sports.

Solve the system of equations by the addition method
{6x + 4y = 18
{ 2x - 4y = -10

Answers

Answer: (1, 3)

Step-by-step explanation:

Answer:

6x+4y+2x-4y = 18+(-10)

8x = 8

x = 1

6x+4y = 18

6*1+4y = 18

4y = 18-6

4y = 12

4y/4=12/4

y= 3

A medical delivery services charges $10 for a house call plus $0.50 per mile. The situation is represented by the equation c=0.5m+10 where m represents the number of miles the delivery is from the office and c represents the cost of the delivery. Calculate the total cost of a medical service delivery if the number of miles driven is 75.5 miles. Write your answer as an ordered pair (m,c).

Answers

Answer:

$47.75

Step-by-step explanation:

Where are given that the cost of medical service delivery is given by the expression

c=0.5m+10

m= the number of miles

when the number of miles is 75.5 mile we want to find the cost

put m=75.5 in the expression

c=0.5(75.5)+10

solving for c we have

c=37.75+10

c=47.75

Therefore the cost will be $47.75 for a distance of 75.5miles

Please show work if there is any​

Answers

l1 and l2 are parallel

r1 and r2 are parallel as they will never meet

Find the coordinates of the midpoint of the segment joining the given points. (-2, 2) and (6, 4)

Answers

Answer:

Step-by-step explanation:

(-2+6/2) (2+4/2)
(4/2) (6/2)
(2) (3)
(2,3)

area of rhombus ROCK is ________ cm^2 if RC = 13 cm and OK = 24cm

Answers

Answer:

156 cm^2

Step-by-step explanation:

1/2 × 13 × 2413 × 12156

The cost of hiring a trailer for t hours is C= 5t+10
draw the graph of C against t

Answers

Answer:

See below

Step-by-step explanation:

Given that

C = 5t + 10

We can simply take t as 1,2, 3 and so on and put it in the above equation. After finding out C, we can plot the points accordingly.

OR

We can simply use a graphing calculator.

See the attached file!

Josh mowed ⅘ of a yard in ⅖ of an hour. How many yards can Josh mow in 1 hour?
Molly bought 5 pounds of apples for $7.95, how much did each pound cost.
Ella worked 22 hours and got paid 249.26. How much did she make an hour?
If Robin drove ⅔ of a mile in 1/12 of an hour, how far can she drive in 1 hour?

Answers

1. 2 yards
2. $1.59
3. $11.33
4. 8 miles

solve for x
your answer must be simplified

2x<15​

Answers

Answer:

7.5

Step-by-step explanation:

2 / 2 = 0  &  15 / 2 = 7.5

x = 7.5

The answer to you’re question is x = 7.5

what is the equation of a line that is perpendicular to -x+7y=42 and goes through (-2,-1) in slope intercept form​

Answers

Answer:

y = -7x - 15

Step-by-step explanation:

Perpendicular lines have negative reciprocal slopes

Given line

- x + 7y = 42

In slope-intercept form it is

- x + 7y = 427y = x + 42y = 1/7x + 6

Perpendicular line has slope - 1/(1/7) = - 7 and its equation is:

y = - 7x + b

Finding b using the point (-2, -1)

-1 = -7(-2) + b-1 = 14 + bb = -1 - 14b = -15

So the line is

y = -7x - 15

Chiara had $5,700 in medical expenses last year. Her medical insurance covered 80% of these expenses. The IRS allows medical and dental expenses deductions for the amount that exceeds 7.5% of a taxpayer’s adjusted gross income. If Chiara’s adjusted gross income is $35,432, how much can she claim as a medical deduction? Explain

Answers

Using proportions, it is found that she can claim amounts greater than $2657.4 as a medical deduction.

What is a proportion?

A proportion is a fraction of a total amount.

In this problem, her adjusted gross income is $35,432, and she can claim deductions for amount's that exceed 7.5% of this, hence:

0.075 x 35,432 = $2657.4.

She can claim amounts greater than $2657.4 as a medical deduction.

More can be learned about proportions at https://brainly.com/question/24372153

are 15/28 and 45/84 equivalent​

Answers

Answer:

yes

Step-by-step explanation:

(45/84) /3 = 15/28

14 gallons of gas is $19.46. how much would it cost to get 9.5 gallons
​

Answers

Answer:

13.205

Step-by-step explanation:

19.46 divided by 14

= 1.39

Multiply 1.39 with gallons given:

=(9.5)(1.39)

= 13.205

Therefore, it would cost $13.21 to get 9.5 gallons of gas.

What is y=-4x-4 in standard form

Answers

Hello!

Standard form is y=mx+b

Y= 4x-4

You divide 4 and 4 = 1

Y= 1x -4

Hope this helps

Answer:  4x + y =  -4

Step-by-step explanation:

The standard form of a linear equation is Ax + By = C.

y = -4x - 4

Add 4x on both sides

4x + y = -4  

if ABC undergoes a dilation of scale factor 3 centered at the origin, what will be the coordinates of the image of point B?
A- ( 6, 3 ) ?
B- ( 2, 9 ) ?
C- ( 5, 6 ) ?
D- ( 6, 9 ) ?
And why ..?
Please help! I’ll give Brainliest to the first person who answers.

Answers

Answer:

Step-by-step explanation:

(5,6)

When solving an ______, use inverse operations to undo the operations.

Answers

[tex][Hello,BrainlyUser][/tex]

║ Answer ║

Equation

Step-by-step explanation:

Inverse operations are used to solve simple algebraic equations to more difficult equations that involve exponents, logarithms, trigonometry, etc

Thus, When solving an equation, use inverse operations to undo the operations.

[CloudBreeze]

Answer:

equation

Step-by-step explanation:

When solving an equation, use inverse operations to undo the operations.

Two equations are graphed above. What is the solution? Please help!

Answers

Answer:

no solution.

Step-by-step explanation:

Lines are parallel ,so they do not cut at any point.Hence no solution.

Solve the system: 2x – 6y + 4z = 3
-3x + 9y – 6z = -3
5x – 15y + 10z = 5

Answers

Answer:

7

Step-by-step explanation:

i hope this is right, I did the math

100 POINTS!!!

What makes a function linear?

A. Having a constant average rate of change.

B. Having a negative average rate of change.

C. Having no repeating inputs.

D. Having a positive average rate of change.

EXPLAIN

Answers

Answer:

Linear functions are those whose graph is a straight line. A linear function has one independent variable and one dependent variable. The independent variable is x and the dependent variable is y. a is the constant term or the y intercept.

Step-by-step explanation:

find the length for x​

Answers

Answer: 6

Step-by-step explanation:

By the triangle midsegment theorem, x=3(2)=6.

Sam's Club has a special that charges $2.49 per case of water. Vinny wants to pay that price, but needs to purchase a membership first, which costs $50. If Vinny spent $67.43, which equation represents how many cases of water Vinny bought at Sam's club?

Answers

Answer: $50 + $2.49x = $67.43

Step-by-step explanation:

Let the case of water bought be represented by x.

We are informed that Sam's Club has a special that charges $2.49 per case of water and that Vinny wants to pay that price, but needs to purchase a membership first, which costs $50 and that Vinny eventually spent $67.43.

The equation that represents the number of cases of water that Vinny bought at Sam's club will be:

$50 + $2.49x = $67.43

How many natural numbers between 100 and 500 have a hundreds digit that is a 3 and a ones digit that is a 5?

Answers

Answer:

  10

Step-by-step explanation:

Two of the three digits of the 3-digit number have been specified. The remaining digit may take on any of 10 values. There are 10 such numbers.

  305, 315, 325, 335, 345

  355, 365, 375, 385, 395

Any intelligent people want to tell me how the heck I do this

Answers

Answer:

I'm pretty sure you are supposed to add the exponents.

Step-by-step explanation:

At batting practice tj had 20 baseballs pitched to him. He hit the ball 17 times

Answers

Answer:

340

Step-by-step explanation:

Its a simple multiplication problem you just have to multiply 20 x 17 = 340  

Hope this helps! :)

solve
4x-1/2=x+7


3x+2=2x+13/3


​

Answers

Answer:

first one is x= 5/2 second one is x= 7/3

PLEASE ANSWER Solve for x. Round to the nearest tenth, if necessary.

Answers

Answer:

above is the solution to the question

16/17 as a decimal rounded to the nearest hundredth

Answers

Answer:

the answer is 0.94

Step-by-step explanation:

16/17 = 0.941176470588

the hundreths place is where the 4 is, and to the right of the 4 is a one, if its under 5 then dont round up so your answer will remail 0.94.

hope this helps have a great day!

PLEASE HELP
Select the correct answer.
Simplify the expression.
3.1 648x478
OA. 18.12y2 2,42
Ов. 18х2у2 /3xy 2
OC. 188723x2y2
OD. 9x2y/2x42

Answers

Answer: B. 18x^2 y^2 3 √3xy^2
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