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Eduardwww [97]
3 years ago
9

Please help I have to get this done today

Mathematics
2 answers:
Nesterboy [21]3 years ago
8 0

Answer:

D

Step-by-step explanation:

Yes. When –4 is substituted for the variable, the result is a true statement.

mylen [45]3 years ago
5 0
C is the correct answer.
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Tcecarenko [31]

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

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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

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y  = 14

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

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3 years ago
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