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3 years ago

What is 78.89 - 42.1

Mathematics

2 answers:

ale4655 [162]3 years ago

7 0

78.89 - 42.1 is 36.79

OLEGan [10]3 years ago

4 0

The answer to 78.89-42.1= 36.79

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You want to go to the skate park, and you have two options:

Tcecarenko [31]

Answer:

See Explanation

Step-by-step explanation:

Define the variables

Let the entry fee be c and the hourly rate be m

Let the number of hours be x and the total amount be y

Work to solve

For Sami's skate

$c = 6$ and $m = 2$

For Brad's skate

$c =10$ and $m = 1$

The equations

The equation is derived using: $y = mx + c$

For Sami's skate

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For Brad's skate

$y = x + 10$

When the cost are the same

To do this, we equate both expressions

i.e.

$y = y$

$2x + 6 = x + 10$

$2x -x = 10 - 6$

$x = 4$

i.e. the cost are the same at the 4th hour

What is the cost

Substitute 4 for x in any of the equations

$y = x + 10$

$y = 4 + 10$

$y = 14$

The cost is $14.00

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3 years ago

I Need Help

Dennis_Churaev [7]

Answer:

c. : 4 times

Step-by-step explanation:

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4 years ago

Which is greater 3.95, 3 5/6, 3 4/5

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The answer to your question is 3.95, if u divide 5/6 u get 83%, if u then divide 4/5 you get 80%

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