Mathematics Middle School

15. The floor plan of the basement of a shopping centre is drawn to a scale of 1:400.

If a supermarket has an area of 0.25 m² on the plan, find its actual area in hectares. (1 hectare = 10 000 m²)​

Answers

Answer 1

Answer:

4 hectares

Step-by-step explanation:

The scale factor is:

k = 1/400

Applied to the area we consider k² as the area is the product of two dimensions.

Find the actual area:

0.25 m² : (1/400)² = 0.25 m² * 160000 = 40000 m² = 40000 * 1/10000 hectares = 4 hectares

Related Questions

Write 6×10 to the power of 4 in standard form!
Please include an explanation!
Thanks!

Answers

Answer:

60,000

Step-by-step explanation:

Evalute

6 x 10*4

6 x 10,000

60,000 is the standard form :)

Answer:

10,000

Step-by-step explanation:

10x10x10x10=10,000

arrange the numbers in order from greatest to least , square 150, 11 4/9. 4pi.


PLS ANSWER IVE BEEN STRUGGLING :(

Answers

Answer:

see below

Step-by-step explanation:

In order

4π ≈ 12.57

√150 ≈ 5√6 ≈ 12.25

11 4/9 ≈ 11.44

note: pi is written as "π''

11 4/9 then 150 then 4pi

Find the number that makes the ratio equivalent to 1:10.
9:

Answers

Answer:

9:90

Step-by-step explanation:

For 1 to get to 9, multiply by 9

1:10 = 9:?

Then multiply 10 by 9

1:10 = 9:90

Answer: 9 : 90

Step-by-step explanation:

= We can see that 1 * 9 = 9

= so , 10 * 9 = 90

Therefore the answer is 9 :90

I hope it helps !!

Enjoy learning !

What is the dependent variable (effect) is this experiment?
"Does eating breakfast improve test score?"


A. what time you get up in the morning


B. eating breakfast or not


C. the grade you get on the test


D. how tasty the breakfast is

Answers

Answer:

the grade you get on the test

c. the grade you got on the test!

I WILL MARK AS BRAINLIEST! Solve for X and Y

Answers

6.
a- x=-6
b- x=-6/7
c- x=10/3
d- x=18
7.
a- y=8
b- y=-94
c- y=28
d- y=27
x=-6
x=-6/7
x=10/3
x=18

y=8
y=-94
y=28
y=27

Write an expression to represent each situation.

1. Michael earns $300 per week plus $10 for each new customer he signs up. Let c represent the number of new customers Michael signs up. Write an expression that shows how much he earns in one week.

2. A man’s age today is four years less than five times the age of his oldest son. Let a represent the son’s age. Write an expression to represent the man’s age.

Answers

Answer:

1.   300+10c= Total $

2.  5a-4= Man's Age

Step-by-step explanation:

Hope this helps!

100 spice up ur life, 200 come fr ya ya ya i can take a big blob ! + 400 = 66

-2 -3 2 3 least to greatest

Answers

Answer:

-3, -2, 2, 3

Step-by-step explanation:

Answer:

Step-by-step explanation:

-3, -2, 2, 3

if it's 7:20 PM what time would it be if 90 minutes passed? HELP!!!

Answers

Answer:

The answer is 8:50 PM.

Step-by-step explanation:

If it's 7:20 PM, then what time is it 90 minutes from now?

Start with 30.  It would be 7:50 PM.  So, add 10 more minutes (with 50 minutes more to add) and you have 8:00 PM.  Add your last 50 minutes.  The time would be, as shown above, 8:50 PM.

The time would be 8:50

Randy biked 3.2 hours at a speed of 12.8 miles per hour. Tyler biked 2.5 hours at a speed of 15 m/hr. Who biked more miles?

Answers

Randy biked more miles.
It’s randy!
He biked more miles than Tyler

I don’t understand question b can somebody explain it for me?

Answers

If Gabrielle takes 19 minutes to run 2 miles then how much time does he take to complete 1 mile.

The above is the ‘b’ question.

We can get to know who long he takes to complete 1 mile taking the mean of the two in the double number line.

In this case it would be, the mean if 2 to get 1 and the mean of 19,

The mean of 2 is,

2miles / 2 = 1 mile.

And the mean of 19 mins is,

19 mins / 2 = 9.5 mins.

Hence, Gabrielle takes 9.5 mins to complete 1 mile.

Hope this helps you. Plz let me know if you have any doubts.

9.5 minutes because if she ran 2 miles in 19 minutes you would divide them both by 2 and 19/2=9.5

Sam made a password that consists of one letter followed by two digits. The two digits are different. How many possible passwords did Sam choose from?
90, 720, 2,340, or 260?

Answers

Answer:

720

Step-by-step explanation:

Sam choose so that’s the answer720

WILL MARK AS BRAINLIEST! Simplify

Answers

a) - 14/9 or as a mixed number -1 5/9

b) 13/25

c) -1/30

d) 2/5

Answer:

4  a)-14/9 = -1.5     b) 13/25 = 0.52  c)-1/30 = -0.03  d)2/5 =0.4

Step-by-step explanation:

4) Make sure the bottom numbers (the denominators) are the same

Subtract the top numbers (the numerators). Put the answer over the same denominator.

Simplify the fraction (if needed)

Ex 3rd qu)   1/6 - 2/10  multiply out 6x 10 = 60 and 10 x 6 to the other denominator and 10 x 1 to 1st numerator and 6 x 2 to 2nd numerator

= 10/ 60 - 12/60 = -2/60 simplified as -1/30

The coordinate grid shows three points P Q and R. the distance between Q and R is ____ units

Answers

Answer:

6

Step-by-step explanation:

you count how many units is in between the points

i hope this helps :)

6


Count the between the both on the x-axis

PLEASE HELP BRAINLIEST TO COrRECT ANSWER

Answers

Answer:

Rational and Real Number

Rational and real number

One table at a bake sale has 150 mini cupcakes. Another table has 180 mini cookies. Which allows more square arrangements when all the mini cupcakes and mini cookies are displayed? Explain.

Answers

Answer: 180

Step-by-step explanation:

their are many ways to split 180 into ways to be a square

Answer:

Another table has 180 mini cookies. Wich table allows more square arrangments when all mini cupcakes and mini cookies are displayed?

Step-by-step explanation:

It's Bryan's turn again. Remember, he is on the
13th space. Which combination will get him to
the 19th space?

Answers

6 ° espaço e combinação

Answer:

Lại đến lượt Bryan. Hãy nhớ rằng, anh ấy đang ở trên

Step-by-step explanation:

Nora has 21 pencils. She packs boxes with 7 pencils in each box. How many boxes will Nora use? Write the equation and answer.

Answers

Answer:

3 boxes

Step-by-step explanation:

divide 21 by 7

Answer:

3 boxes

Step-by-step explanation:

Divide 21 by 7

Rachel bought 2.5 pounds of cookies for $13.40. Her friend buys 4.5 pounds of crackers for $24.75. Which is less
expensive per pound? By how much? (HINT: Find the unit rate for each, then find the difference)

Answers

Cookies: $13.40 divided by 2.5 = $5.36
Crackers: $24.75 divided by 4.5 = $5.50
Therefore, Cookies are less.
the answer would be the crackers are more expensive per pound and by $0.14. if you divide the price of the cookies by the amount of pounds you would come up with about $5.36 per pound. and if you do the same with the crackers it would be about $5.50 per pound.

please help lollll i will give brainliest

Answers

Answer: 2nd answer

Step-by-step explanation:

Answer:

The second one -   5 + (-6)

Step-by-step explanation:

When you are adding a positive number to a negative, the addition gets cancelled out, making he equation

5  -  6

Hope that helped!

I need help with this

Answers

Answer:

What question?

Step-by-step explanation:

Lol what do you want us to do lol

i need to know the rest of the equation just letter R

Answers

Notice that 2/3 times 12 is...

(2/3)*12 = (2/3)*(12/1)

(2/3)*12 = (2*12)/(3*1)

(2/3)*12 = 24/3

(2/3)*12 = 8

So that explains the 8 on the right hand side.

For the blank, we'll multiply 2/3 by the 9y term like so

(2/3)*9y = ((2/3)*(9/1))y

(2/3)*9y = ((2*9)/(3*1))y

(2/3)*9y = (18/3)y

(2/3)*9y = 6y

This means 6y goes in the blank.

If your teacher only cares about the coefficient, aka number out front of the variable, then you'd just go for 6. That's my guess as to what your teacher wants. It seems to fit with the template you show and that would mean R goes in the second to last slot.

Also, for those types of worksheets you can ALWAYS find the answer key just by googling the the puzzle name!

GIVING BRAINLIEST, THANKS AND FIVE STARS!!!!!!

Find the greatest common factor of each pair of numbers.
1. 24 and 36

2. 39 and 54

3. 42 and 98

4. 48 and 72

5. 65 and 91

6. 7 and 20

Answers

Answer:

1. 24 and 36=12

2. 39 and 54=3

3. 42 and 98=14

4. 48 and 72=1

5. 65 and 91=13

6. 7 and 20=1

Answer:

1. 12

2. 3

3. 14

4. 24

5. 13

6. 1

How can you use 5, 5, 5, 5, to make 24 using addition, multiplication, subtraction, or division, but without using other numbers.

Answers

Step-by-step explanation:

5×5×5=125

125-5=120

120÷5=24

Answer:You can do 5 x 5 x 5 and get 125 or maybe do 125 - 5 to get 120 And for the division you do 120 divided by 5 to get 24

Step-by-step explanation:

Point C is the image of A after a translation two units to the right, then a reflection using the x-axis. What are the coordinates for point C?

Cordinates are (-4,3)

Answers

Hi :)

The coordinates for point C are (-2, 3).

I hope this can still help you

The kitchen assistant is helping the chef to serve soup. The chef made 3 pots of
soup and the assistant is putting cups of cream on top of the soup in each
bowl. There are 12 cups of cream. How many bowls of soup can the assistant help prepare?

Answers

2 bowls of soup………………..

Please help! There is 2 question! Thank you so much

Answers

Answer:

The answers are:

Question 23: 140

Question 24: 25

Step-by-step explanation:

Question 23:

Since 25% is 1/4 of the total amount of members in the club, we need to multiply the amount of drum player (35), by 4.

35 x 4 = 140

Question 24:

The absolute value of -25 is 25, since the absolute value is the value without any signs.

Therefore, the answers are:

Question 23: 140

Question 24: 25

Question 23 is 140 because since there is 25% that would be 1/4 and you would divide by 4.

Question 24 is 25 I think.

Find the greatest common factor of each pair of numbers.


1. 24 and 36

2. 39 and 54

3. 42 and 98

4. 48 and 72

5. 65 and 91

6. 7 and 20

Answers

1. 12
2. 3
3. 14
4. 24
5. 13
6. 1
1. 12
2. 3
3. 14
4. 24
5. 13
6. 1

5+k/4=3 please explain thoroughly

Answers

To solve this equation, you must multiply by a denominator and then subtract to isolate a variable.

Remove the Denominator

Multiply by 4 on both sides of the equation.

[tex]\displaystyle 4(5 + \frac{k}{4}) = 4(3)[/tex]

[tex]\displaystyle 20 + k = 12[/tex]

Simplify

Subtract 20 from both sides to isolate the k.

[tex]20 - 20 + k = 12 - 20[/tex]

[tex]\boxed{k = -8}[/tex]

The final answer is k = -8.

Choose Yes or No to tell if 10' will make each equation true.
670 x (blank) = 67,000
(Blank) x 45 = 4,500
21 x ( blank) = 21,000
(Blank) x 903 = 903, 000 No

Answers

Answer:

ad

Step-by-step explanation:

ddda

No 10 doesn’t work

Which one of these is a square number?

15
39
81
132

Answers

Answer:

81

Step-by-step explanation:

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