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salantis [7]
3 years ago
12

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

Mathematics
1 answer:
Tcecarenko [31]3 years ago
3 0

Answer:

See Explanation

Step-by-step explanation:

<u>Define the variables</u>

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

<u>Work to solve</u>

For Sami's skate

c = 6 and m = 2

For Brad's skate

c =10 and m = 1

<u>The equations</u>

The equation is derived using: y = mx + c

For Sami's skate

y = 2x + 6

For Brad's skate

y = x + 10

<u>When the cost are the same</u>

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

<u>What is the cost</u>

Substitute 4 for x in any of the equations

y = x + 10

y  = 4 + 10

y  = 14

<em>The cost is $14.00</em>

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Answer:

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