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4 years ago

How do you write 82.33 in words

Mathematics

2 answers:

aliya0001 [1]4 years ago

7 0

Eighty two point thirty three ..?

blsea [12.9K]4 years ago

7 0

You write your answer like this eighty eight and thirty three hundreths

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If a=x+y and b=x-y ,show that (a-b)^2=4y^2

NemiM [27]

Step-by-step explanation:

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2 years ago

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3 years ago

Read 2 more answers

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Gelneren [198K]

Emma:

Number of hours = 4

Total cost = 18

Where x is the cost per hour n and y is the flat fee

18 = 4x + y

Louise:

number of hours = 7

total cost = 25.50

25.50 = 7x + y

We have the system of equation:

18 = 4x + y

25.50 = 7x + y

Solve the first equation for y

18-4x = y

y = 18-4x

Replace y on the second equation; and solve for x

25.50 = 7x + (18-4x)

25.50 = 7x + 18 -4x

25.50 = 3x + 18

25.50 - 18 = 3x

7.5 = 3x

7.5/3 = x

2.5 = x

a. Cost per hour = $2.5

Now, replace x on any equation and solve for y

18 = 4x + y

18 = 4 (2.5) + y

18 = 10 +y

18 - 10 = y

8 = y

b. Flat fee = $8

c. Use the equation:

Cost = flat fee + cost per hourx (number of hour)

Cost = 8 + 2.5 (2)

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3 years ago

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Answer:

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3 years ago

The expression x−y equals 0.7 if x and y have certain values. Evaluate the following expressions with the same values of x and y

Marina86 [1]

Answer:

-0.7

Step-by-step explanation:

$x-y=0.7$

You can choose any digits you wish for $x$ and $y$ but the difference must be 0.7. I chose 1.0 and 0.3.

$x=1\\y=0.3\\x-y=0.7\\\\y-x=\\0.3-1=\\-0.7$

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4 years ago