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4 years ago

How to answer please help me I need to go to sleep soon so help me please so I can sleep love ya

Mathematics

1 answer:

kotykmax [81]4 years ago

4 0

78.75
..................................

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A floor 10m by 40m is covered by square tiles 20cm. How many tiles are needed to cover the floor?

Lady_Fox [76]

Answer:

10,000

Step-by-step explanation:

We can find the area of the floor in cm^2 and divide by the are of 1 tile in cm^2.

1 m = 100 cm

10 m = 1000 cm

40 m = 4000 cm

area of floor = LW = 1000 cm * 4000 cm = 4,000,000 cm^2

area of tile = s^2 = (20 cm)^2 = 400 cm^2

number of tiles = 4,000,000/400 = 10,000

Answer: 10,000 tiles

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3 years ago

X+3 over 25 = 1 i need help

QveST [7]

Answer:

x = 22

Step-by-step explanation:

(x + 3)/25 = 1

Multiply both sides by 25

x + 3 = 25

-3 -3

x = 22

I hope this was helpful! <3

Could I get brainliest?

8 0

3 years ago

At the beginning of the week the balance in your bank account was $298.72. During the week you made a deposit of $425.69. You al

Nastasia [14]

425.69+298.72=724.41

29.72+135.47+208.28=373.47

724.41-373.47=350.94

350.94-5=345.94

The answer is c

7 0

4 years ago

Read 2 more answers

Need help with this!!

Cerrena [4.2K]

Answer:

Step-by-step explanation:

B-C is {1,2}. Answered by Gauthmath

3 0

3 years ago

Simplify 36x^4 42x^7

Alja [10]

The first step to simplify this equation is to multiply the numbers
1512 $x^{4}$ × $x^{7}$
next,, youll multiply the terms with the same base by adding their exponents
1512 $x^{4+7}$
finally,, youll add the numbers together
1512 $x^{11}$
since you cant simplify any further,, the correct answer to your question is 1512 $x^{11}$
let me know if you have any further questions
:)

4 0

3 years ago