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cestrela7 [59]
3 years ago
10

Brian and Katie have $40 to spend at the store.

Mathematics
2 answers:
Bumek [7]3 years ago
6 0
$20 dollars is the change not including tax with tax is 19.33
Rina8888 [55]3 years ago
4 0

Answer:

It would be 20

Step-by-step explanation: 4x1=4+2x2=4+3+3x3=9 final answer 40-20=20

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What is the slope of a line perpendicular to 24x-9y=63
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In order to find the slop it is probably best to put the equation in y=mx+b form. This means to get y by itself on one side. 
24x-9y=63 will then become -9y=63-24x in which y has been isolated.
Then you should divided by -9 to get the final form: y=24x/9 -63/9.
 Now you can get the slope of the perpendicular line by taking the slope of the original equation and finding its reciprocal which is -9/24x. This is your answer. 
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