Mathematics High School

The chairs in a school hall were arranged in 15 rows with 28 chairs in each row if these chairs were rearranged into rows of 20,how many rows of chairs would there be

Answers

Answer 1

Answer: 21

Step-by-step explanation:

Since the chairs in a school hall were arranged in 15 rows with 28 chairs in each row, the total number of chairs will be:

= 15 × 28 = 420

If they were arranged in 20 rows, the number of chair in each row will be:

= 420/20

= 21

Related Questions

Ill mark you brainliest please help !

Answers

Answer: (-2, 1)

Step-by-step explanation:

angle A and angle B are supplementary angles. If m angle A = (2x + 26)° and m
angle B = (x + 25)°, then find the measure of angle B.


x=43

Answers

Answer:

m angle B = 68°

Step-by-step explanation:

Since they are supplementary, they add up to 180°

(2x+26) + (x+25) = 180

add like terms together

3x+26+25=180

simplify the left side

3x+51=180

subtract 51 from both sides

3x=129

divide both sides by 3

x=43

Then you plug in x into measure B

(43)+25

68

is this a function or not​

Answers

Answer:

No, I don't think so.

Step-by-step explanation:

I don't think this is a function because the triangle is made of multiple points. Some of these points share the same x point, so this concludes that a triangle on a graph is not a function.

Hope it helps!

Plz help.
Will give brainliest answer.

Answers

Step-by-step explanation:

If cats are 10 and dogs are 4 means cats are 6 more than dogs means 4+6 = 10

so 5-6 = -1

32+6= 38

hope it's helpful ❤❤❤❤❤❤

THANK YOU.

#

Write a linear function that relates y to x .


y=

Answers

Answer:

y = x-2

Step-by-step explanation:

find the slope. 0,-2 and 2,0

0- -2 / 2-0 = 1

y-0 = 1(x-2)

y = x - 2

The temperature is −18.2 Celsius in South Dakota and -9.7 Celsius Minnesota. Which one of the following inequalities correctly compares the temperatures? Choose 1 answer: Which one of the following descriptions is correct?​

Answers

Answer:

A and A

Step-by-step explanation:

please mark brainliest.

Answer:

A and A

Step-by-step explanation:

The admission fee to the Omnitheatre is $f. The admission fee to the Science Centre is $3 less. Jessica purchases 8 tickets to the Science Center. What is the admission fee to the Science Centre if she pays the cashier $122? *​

Answers

Answer:

98

Step-by-step explanation:

3 times 8=24

122-24=98

find the perimeter or circumference and area of each figure and round to the nearest tenth​

Answers

Answer:D hope this helps :)

Give the graphs of f(x) and g(x), what is f (f (2)) ?

Answers

Answer:

3

Step-by-step explanation:

Because on the graph when  x is 2 y is 3 ( look on the red line that's the f(x0 graph)

(-5,-3) (5,5)
slope
What is the slope ?

Answers

Answer:

The slope is 10/8

Step-by-step explanation:

You would rise 10 units and you would run 8 units.

answers ASAP plsssssss

Answers

Answer:

Step-by-step explanation:the answer is option A as 1 • 3 =3 and 3+4=7

What are the solutions of the equation (x−9)2=64?

Answers

Answer:

17,1

Step-by-step explanation:

I just did this question on the benchmark

The five Smith children run to the ice cream truck. In how many orders can they served one at the time? ​

Answers

There’s nothing we can use to solve this.

Clyde made lasagna for dinner last night and 1/3 of it was left over clyde will share the leftover lasagna equally with his brother for lunch what diagram could they use to find the fraction of the whole lasagna that each will have for lunch?

Answers

Answer:

hwlllo

Step-by-step explanation:

Plz help if you could I would appreciate it :)

the highlighted ones only​

Answers

Step-by-step explanation:

this is the process to convert to the perfect square.

try to bring convert to (x-a)^2 or (X+a)^2

I've done 2 questions hope it gives u the basic idea .

I need help with this question

Answers

Answer:

120

Step-by-step explanation:

that is an isosceles triangle so all angles are equal to 60

x is supplementary with the angle that is equal to 60  meaning that the two angles added with equal 180

180-60=120 so x=120

What is the probability he will roll a 5?

Answers

Answer:

hurt himself if he is 5 pieces away from jail in monopoly and this is his 9th time

Step-by-step explanation:

A rabbit weighs 2.8 kg.
After being shot its weight
is increased by 1%.
How much does it
weigh now?

Answers

Answer:

The rabbit now weighs 2.828 kg.

Step-by-step explanation:

First we have to do 2.8 ÷ 100 to see how much 1% of the rabbit weighs.

2.8 ÷ 100 = 0.028 kg

1% of 2.8 is 0.028! Now we have to add 0.028 to 2.8 to get our answer!

2.8 + 0.028 = 2.828 kg

The rabbit now weighs 2.828 kg.

How many different states have you visited?

Answers

Answer:

Pfffft only one. I went to California

Step-by-step explanation:

Answer:

i am an alpha male so i have visited all of the states i know i know calm down ladies you all dont need to see me at one. (for legal reasons this is a joke)

Step-by-step explanation:

Can you please help me?

Answers

Answer: No

Step-by-step explanation: Because.

no, 3 times 2 is not 10

Given the similarities statement HIJ ~ WXY which angle corresponds with

Answers

Answer:

I

Step-by-step explanation:

Using the figure below, find x if Z2 = 14x + 58 & 27 = 10x + 66.
M
9
1/2
43
516
78
b
*Hint: Follow the steps for finding angle measurements by relationships
5
14
6
2

Answers

Oh yeah lol I wowww

Congruen Figures lyures Which figure is congruent to the given figure? Will give brainliest ​

Answers

Answer: Its the rectangle thats going upwards not flat.

Step-by-step explanation:

Answer: The rectangle at the very top and the one at the bottom are congruent.

Step-by-step explanation: REMEMBER YALL: congruent means the same( in geometry)

//Give thanks if helpful :)//

PLEASE ANSWER QUICK I NEED HELP

Answers

Answer:

I think c?

Step-by-step explanation:

the answer is c!!!

explanation sindkdksksjdkdjdjej

brailnsliest would help

Jocelyn was given a box of assorted chocolates for her birthday. Each night, Jocelyn treats herself to some chocolates. The number of chocolates remaining in the box tt days after Jocelyn's birthday can be modeled by the equation C= -3t+30. What is the x-intercept of the equation and what is its interpretation in the context of the problem?

Answers

9514 1404 393

Answer:

"x-intercept": t = 10the chocolates will be gone after 10 nights

Step-by-step explanation:

The "x-intercept" is the value of the independent variable (t, in this case) such that the value of the dependent variable (C) is zero. We can find it by solving the equation ...

  0 = C

  0 = -3t +30

  0 = -t +10  . . . . .  divide by 3

  t = 10 . . . . . . . . . add t

The value of t is the number of days Jocelyn has been eating the chocolates. When t=10, C =0. The number of chocolates remaining in the box will be zero after 10 days.

Answer:

The x-intercept of the function is 10 which represents the number days after Jocelyn's birthday until all of the chocolates are gone.

Step-by-step explanation:

Since there were 0 chocolates remaining after 10 days, the x-intercept of 10 represents the number of days until the box of chocolates was empty.

Have a good day :)

Please help ...............

Answers

b
im not so sure tho

In the diagram, AB = AC and ∠DCE = 75°, BCD and ACE are straight lines. ∠BAC =

Answers

Again, what is the shape?

Describe the rule for the rotation.

How to answer:
____ degrees _________(clockwise or counterclockwise)

Answers

Answer:

Step-by-step explanation:

If you draw a line from the origin (0,0) to L ( the original point ) and a different line from the origin to the image L' you can see the angle of rotation as being

90 degrees and that the rotation is clockwise.  

the rule is (x, y) become ( y, -x)

7 yr 27 mon 27 da + 26 mo 42 da = i need answer aszap

Answers

Answer:

11 years 7 months 7 days(if 31 days a months) and change 7 days to 9 days if assuming 30 days a moths

plz somebody help me asap i need help

Answers

Answer:

False, True, Falso True

Step-by-step explanation:

Slope is 3/1 or 3

Line hits (0,-5)

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