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Aleks04 [339]
4 years ago
14

Please help. solve for the variable

Mathematics
1 answer:
Elanso [62]4 years ago
4 0

Answer:


Step-by-step explanation:

12. 6(5n-3)=36n

-divide each side by six: 5n-3=6n

-subtract 5n from 6n: n= -3

14. 5b+8/3=3b

-multiply each side by 3: 5b+8=9b

-subtract 5b from 9b: 8=4b

-divide each side by 4: b=2

16. 3r+4-8r=4r-12

-subtract 3r-8r= 5r:  5r+4=4r-12

-Subtract 4r from 5r, then subtract 4 from 12

r = -16

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Answer:

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Step-by-step explanation:

(x + 4) + (2x - 7) =

The first step is to drop the parentheses since they are unnecessary.

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Now group like terms together.

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Combine like terms.

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Solnce55 [7]

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================================

Explanation:

Plug in d = 0 and you'll have A(d) = 0.45d+180 turn into A(0) = 180. This says that Terry is paid $180 even if he doesnt travel a single mile.

Now plug in d = 1. You should get A(1) = 180.45 as the result.

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He has earned 45 cents or 0.45 dollars for traveling one mile

----------

A shortcut is to notice that the slope of the line is 0.45

It might help to view A(d) = 0.45d+180 as y = 0.45x+180. We see that the equation is in slope intercept form y = mx+b

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C is sus btw

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