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Andrej [43]
3 years ago
13

(01.02) kim earns $30 for babysitting on friday nights. she makes an average of $1.25 in tips per hour. write the function of ki

m's earnings, and solve for how much she would make after 3 hours. (1 point) y = 1.25x + 30; $33.75 y = 30x + 1.25; $43.75 y = 30x + 1.25; $91.25 y = 1.25x + 30; $31.25
Mathematics
1 answer:
defon3 years ago
8 0
Y = 1.25x + 30 <== ur function

for 3 hrs.....x = 3
y = 1.25(3) + 30
y = 3.75 + 30
y = 33.75 <=== for 3 hrs
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Given:
f(x) = 70n - 400   : equation for monthly profit.
n = number of students enrolled in the guitar class.

70 refers to the amount charged per student.
400 is the fixed expense made by the instructor.

For the instructor to have a profit, the product of 70n must be more than 400.

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3 years ago
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lutik1710 [3]

Answer:

x = 15

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The sum of the 3 angles in a triangle = 180°

Sum the 3 given angles and equate to 180, that is

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13x = 195 ( divide both sides by 13 )

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