Mathematics Middle School

1.- The Tenth-grade classroom has a rectangular shape whose length measures 4m more than the width.

a) Calculate the width and length of the rectangular classroom, knowing that its perimeter is 28m.
b) Calculate the area and the number of desks that must fit in the classroom to comply with the biosecurity standards of 1.5m of social distancing.

Answers

Answer 1

Step-by-step explanation:

I don't know I don't know I don't know I don't know I don't know I don't know I don't know I don't know I don't

Related Questions

Can someone please help me answer this it's in the screenshots below

Answers

1) Monday
2) 13
3) 10
4) It starts at a higher temperature then slowly decreases, then increases again
5) On sunday the temperature was the lowest, this is because it is the lowest on the graph at 10
6) They should’ve added more numbers between to have a more clear answer
1)Monday
2)13
3)10
4)it start hot then goes down a little bit and the goes up on Friday and goes back down
5)it was on Sunday
6)by having more information about the temperature

Please help!!!!!!!!!!!!!!!!!!!!

Answers

Answer:

4. alternate exterior angles

5. 4.5

Alternate exterior angles 5.45 hope this helps

How do you convert parts per million (ppm) to meters?

Answers

Answer:

100,000 in 1

Step-by-step explanation:

( Trigonometry question)
- will give branliest if it's the correct answer.-

Answers

Answer:

728.0067825

Step-by-step explanation:

Answer:

728 rounded

Step-by-step explanation:

i dnt know how I came up with the answer

my teacher took my pop tart-

Answers

Wow... Unbelievable Fire that teacher right now >:(
Just…… go buy another one. If you need assistance on which one to chose I personally like the strawberry one them things good.

which angles are supplementary to 14 ? select all that apply.

Answers

Answer will be 15>
Supplementary angles are two angles with the sun of 90 degrees
19 is supplementary to 14 :)

Annabella swam for 2 3/4 hours, macyn swam 1 6/8 hours less than Annabella, seth swam 1 2/3 hours longer than macyn, Jaden swam as long as Annabella and Seth combined, Ricardo swam 6/9 of an hour longer than seth. How long did each kid swim.

Answers

Answer:

Annabella swam for 2 hours and 45 Minutes. Macyn swam for 1 hour. Seth swam for 2 hours and 40 minutes. Jaden swam for 5 hours and 25 minutes. Ricardo swam for i believe 3 hours and 20 minutes. Jaden swam the longest and all of them together swam for: 910 minutes. AKA 15 hours and 10 minutes

Step-by-step explanation:

That was a lot of work please mark brainliest :)

I WILL ANSWER SO THE OTHER PERSON CAN GET BRAINLIEST:D
HOPE YOU HAVE A NICE DAY/NIGHT!

please help thank youuuu

Answers

Answer:

C

Step-by-step explanation:

I honestly took an educated guess

Negative association or correlations are defined by one variable increasing while the other is constantly decreasing. The correct answer is C

6(5 - 3x) - 5(3x + 2)

Answers

Answer:

Step-by-step explanation:

I conclude that you need to find the value of x

6(5 - 3x) - 5(3x + 2)

30 - 18x -15x -10 = 0

-33x +20 = 0

33x = -20

x = -20/33

The answer is
= −33x+20

***no links please***

Answers

Answer:

3(pi)

Step-by-step explanation:

8.33 (repeating 33) is 8.333333...

3(pi) = 9.42477796...

17/2 = 8.5

sqrt(64) = 8

Answer: 3(pi)

Answer:

3 times pi

Step-by-step explanation:

8.33

pi times 3 is about 9

8.5

8

HELP ASAP!!! (KHAN ACADEMY...USE IMAGES)

Answers

Answer:

8/3 is the unit rate of change

for graph: second point on the line coordinates will be (3,8)

8/3 = unit rate of change
(3,8) are coordinates

Do the ordered pairs (2, 20), (5, 15), (12, 19), and (14, 13) represent a function?

Answers

Answer:

yes

Step-by-step explanation:

Yes it does because the c values don’t repeat

Which of the following triangles have three sides of different length?

A. acute
B. scalene
C.equilateral
D. right

Answers

Answer:

B. scalene

Step-by-step explanation:

A. acute - all angles are less than 90 degrees

B. scalene - all sides are different lengths

C.equilateral - all sides the same length

D. right- one angle is 90 degrees

Answer:

B

Step-by-step explanation:

Scalene Triangle A scalene triangle is a triangle in which all three sides are different lengths. Equilateral A polygon is equilateral if all of its sides are the same length

Hope this helps =)

Which equation correctly models the relationship between hours passed, h, and the number of bacteria present, b, as shown in the table?

Amount of Bacteria

Hours # of

Passed Bacteria

0 1

1 2

2 4

3 8

4 16


A. b=2 to the h power

B. b=2 to the h power plus 1

C. b=2h

D. b=2h+1
sorry, it shows it a bit messed up. the number of hours is shown on the left side with the numbers directly below it. the number of bacteria is the second column.

Answers

Answer:

A. b = 2 to the h power

Step-by-step explanation:

For the table:

When:

h = 0, b = 1, so 1 = 2^0, 1 = 1

h = 1, b = 2, so 2 = 2^1, 2 = 2

h = 2, b = 4, so 4 = 2^2, 4 = 4

h = 3, b = 8, so 8 = 2^3, 8 = 8

h = 4, b = 16, so 16 = 2^4, 16 = 16

I got A. B=2 to the h power

Question: What is x????​

Answers

The answer for x will be 15

Answer:

x= 15

Step-by-step explanation:

because the other side is equal so you want to find what number times 3 will get you 45

***no links please:)****

Answers

Answer:

A

Step-by-step explanation:

√64 = 8

so B isn’t correct because 8.16... is greater than 8 and the same is for C

The only correct option is A: 7.5

Answer:

the answer is

A because /64= 8

and between 6⅛ and 8

its 7½

Which angles are vertical to each other ? Select all that apply.

Answers

Answer:

angles 5 and 7

angles 2 and 4

angles 12 and 10

the answers are 5&7 and 10&12

Which expression has a value of 31 when x = 6, y = 10, and z = 11?
A.
3xyz

B.
2x + 3y – z

C.
4yz – 2x

D.
xy – 2z

Answers

C explanation I already did this question
the answer is B

2x 6=12
3x10=30
12+30=42
42-11=31

help plzzz...also give steps

Answers

Your answer is h=2 or the height is to hope this helped
answer = 2.5, i did 12.5 divided by 5 which got 2.5

Which describes all decimals that are rational numbers?
A. the decimal terminates or repeats.
B. the decimal terminates and does not repeat.
C. the decimal neither terminates nor repeats.
D. the decimal repeats and does not terminate.

Answers

Answer: A. the decimal terminates or repeats.

===========================================================

Explanation:

A terminating decimal example would be something like 0.2 which converts to the rational number, aka fraction, 1/5. The word "terminate" means "stop", so it's any decimal that doesn't go on forever.

A repeating decimal is something like 0.33333 where the 3s go on forever, and that converts to 1/3.

If any of these conditions happen, then the number is rational.

--------

For something like pi = 3.14159... where there isn't a pattern and it goes on forever, then we consider this number irrational. The term "irrational" literally means "not rational". So this allows us to rule out choice C.

Choices B and D are partially true, but they only paint half the picture needed to form all rational numbers. Choice A is the most complete statement.

In other words, while choice B is technically true, it leaves out repeating decimals. Choice D is the same way but it leaves out terminating decimals. So we can rule out choices B and D.

The answer is aaaaaaaaaaaaaaaaaaaa

iki has a piece of string that she cuts into smaller pieces. This line plot shows the lengths of the pieces. Raj has a piece of string that is 12 as long as Kiki's third-longest piece. (Note: The problem says third-longest piece, not third-longest length.)

How long is Raj's piece of string?

Enter your answer as a mixed numbe
Line plot titled Pieces of String. The number line is labeled Length in inches and goes from 4 and 1 fourth to 5 and 3 fourths by fourths. Thereare 2 marks above 4 and 1 fourth, 3 marks above 4 and 1 half, 2 marks above 4 and 3 fourths, 2 marks above 5, 4 marks above 5 and 1 fourth, 1 mark above 5 and 1 half, and 2 marks above 5 and 3 fourths.
Please no fake links, thanks!

Answers

Answer:19 inches

Step-by-step explanation:

19 inches have a good day

Need help, Don’t know what to put!!!!!

Answers

180 - 143 = 37
180 - 37 - 61 = 82

The answer is 82°

Answer:

84

Step-by-step explanation:

180° - 61° - 37°

180° is the sum of the 3 angles in any plane triangle. the 37 is reasoned from the picture

Mitra lives in San Francisco and takes a plane to Hawaii. When Mitra left the house it was -4°. When the plane landed in Hawaii, Mitra realized it was 32° hotter! What was the temperature when Mitra landed in Hawaii?

Answers

Answer:

28 degrees

Step-by-step explanation:

-4 + 32 = 32 - 4 = 28

hope this helped

28 degrees

All you need to do is add 32 to -4, or take 32-4

Kiara has 39 yards of edging to pit around a garden. She uses all the edging to make 20 sections that are the same length. How long is each section,in yards.rounded total he near was st hundredth.

Answers

Answer:

1.95

Step-by-step explanation:

39 * 20

39 * 20 = 1.95

1.95

Because 39/20= 1.95

which angle is adjacent to 9 ?

Answers

Adjacent means next to, so 12

Answer:

its the last one 12

Step-by-step explanation:

How many faces have an area of 70 cm2?

Answers

Answer:

3

Step-by-step explanation:

The base of it: 5*14 = 70

The left side: 14*5 = 70

The right side: 14*5 = 70

The two triangle sides are 7*12 = 84 cm^2

3 faces have an area of 70cm^2

Quick, can someone help me, please?

Answers

Picture not clear enough.
not clear.. sorry, did you figure it out or still not?

Consider the inequality -20.2 > 0y. Which of the following must be true? Check all that apply.
1.You cannot divide by zero.
2.The inequality is equivalent to -20.2 > 0, which is false.
3.The solution is y > 0.
4.The solution is 0 > y.
5.The solution is y = 0.

Answers

Answer:

Step-by-step explanation:

1 and 2

1 because indeed you can't divide -20.2 by zero to get y

2 because the inequality is basically a false situation.

The answer is definitely 1 and 2

which angles are complementary to each other select all that apply

Answers

Answer: 4 and 1

Step-by-step explanation:

Both ∠4 and ∠1 are equal angles. Both the angles are beside a right angle and you can measure it. The other answers are over 90 degrees, or below 90. This is because they either combine a 90 degree angle with another angle, or that they are too small and obvious that they are not complementary.

Answer:

<2 and <4

complimentary <s add up to 90 °

Which angles are supplementary to each other ? Select all that apply

Answers

Answer:

6 and 4

Step-by-step explanation:

Answer:

Choice 3: ∠5 and ∠6

Step-by-step explanation:

Supplementary means straight, and these two angles form a straight line when added together (angle measurements add up to 180)

Hope this helped :)

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