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xeze [42]
3 years ago
7

Emily makes 11.50 an hour plus tips. one day she made 121.75 working 7 hours. write an equation to determine her tips.

Mathematics
2 answers:
Nady [450]3 years ago
8 0

She made 41.25 in tips.


BaLLatris [955]3 years ago
5 0
11.50•7= 80.50
121.75-80.50= 41.25
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Find the solution to the systems of equation <br><br> 3x-2y=-9<br> 4x+3y22
eimsori [14]

Answer:

x = 1 and y = 6

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3x - 2y = -9   ........................... eqn 1

4x + 3y = 22 ........................... eqn 2

to eleminate y, multiply eqn 1 by 3 and eqn 2 by 2

(3x - 2y = -9) × 3

(4x + 3y = 22) × 2

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8x + 6y = 44  ........................... eqn 4

Add eqn 3 and 4 together and we get

17x = 17

x = 17/17

x = 1

To get y, substitute 1 for x in any of the eqns

taking eqn 4

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3 years ago
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son4ous [18]
Volume of a cylinder is V=pi r^2h =42.41
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