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Nataly [62]
2 years ago
12

PLEASE HELP ME WITH THIS

Mathematics
1 answer:
guapka [62]2 years ago
3 0

Can you write it out differently? I don't understand.

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What is the sum of the first 14 terms of the sequence : an=6n-12
Gemiola [76]
A1=6*1-12=-6   arithmetic sequence 
a14=6*14-12=72
sum =n(a(1)+a(n))/2
sum =14*(-6+72)/2=462
5 0
2 years ago
A mechanic charged $220.28 to repair a car. The price included charges for 3 hours of labor and $126.53 for parts. How much does
jasenka [17]
Lets x is the labor charges per hour
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3x = 93.75
x = 93.75  /  3
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6 0
2 years ago
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A salesperson earns $200 a week plus a 4% commission on her sales. Which equation models the relationship between her sales in a
stepan [7]

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3 years ago
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I need help pls !!!!!!!
Alexxx [7]

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Step-by-step explanation:

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3 0
3 years ago
Please help me with this I really need help r-12=25 :r=37
natta225 [31]

Answer:

it's self explanatory 25

Step-by-step explanation:

r -12 = 25

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6 0
3 years ago
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